6,444 research outputs found
1, 2-H shift in benzylchlorocarbene: isotope effect and influence of the solvent
No full textLaser flash photolysis of 3-chloro-3-benzyldiazirine and 3-chloro-3-(phenyldideuteriomethyl)diazirine in isooctane over the 60 to -80-degrees-C temperature range gives rise to curved Arrhenius plots for both 1,2-H and 1,2-D migration in benzylchlorcarbene. The k(H)/k(D) values increase smoothly from 0.87 to 2.62 when the temperature increases from -60 to +30-degrees-C. The k(H)/k(D) value is approximately 4 for most of the temperatures studied if a solvent correction is applied. Quantum mechanical tunnelling or the influence of the solvent may be a possible explanation for these observations.PT: J; CR: BONNEAU R, 1989, J AM CHEM SOC, V111, P5973 BONNEAU R, 1992, J PHOTOCH PHOTOBIO A, V68, P97 DIX EJ, 1993, J AM CHEM SOC, V115, P10424 EVANSECK JD, 1990, J PHYS CHEM-US, V94, P5518 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 JACKSON JE, 1994, ADV CARBENE CHEM JONES M, 1980, REACTIVE INTERMEDIAT, V2 KIRMSE W, 1971, CARBENE CHEM LIU MTH, 1984, TETRAHEDRON, V40, P887 LIU MTH, 1990, J AM CHEM SOC, V112, P3915 LIU MTH, 1992, J PHOTOCH PHOTOBIO A, V63, P115 LIU MTH, 1992, J PHYS ORG CHEM, V15, P285 LIU MTH, 1994, RES CHEM INTERMEDIAT, V20, P195 MODARELLI DA, 1992, J AM CHEM SOC, V114, P7034 MOSS RA, 1992, TETRAHEDRON LETT, V33, P4287 MOSS RA, 1994, ADV CARBENE CHEM MUROV SL, 1973, HDB PHOTOCHEMISTRY NICKON A, 1993, ACCOUNTS CHEM RES, V26, P84 SALIS GA, 1968, J PHYS CHEM-US, V72, P752 SANDER W, 1994, UNPUB SCHAEFER HF, 1979, ACCOUNTS CHEM RES, V12, P288 SCHOLLER WW, 1989, HOUBEN WEYL METHODEN, P41 SHIMANOUCHI T, 1972, TABLES MOL VIBRATION, V1 SUGIYAMA MH, 1992, J AM CHEM SOC, V114, P966 WIERLACHER S, 1993, J AM CHEM SOC, V115, P8943; NR: 25; TC: 20; J9: J PHOTOCHEM PHOTOBIOL A-CHEM; PG: 5; GA: PV021Source type: Electronic(1
Laser flash photolysis study of substituent effects on the rate of 1, 2-H migration in a series of benzylchlorocarbenes
No full textLaser flash photolysis of para-substituted 3-chloro-3-benzyldiazirines in isooctane produces the corresponding carbenes, which react with pyridine to form ylides or undergo 1,2-H migration to form the (Z)- and (E)-beta-chlorostyrenes. The rate for the 1,2-H migration is determined by plotting the pseudo-first-order rate constants for the growth of the ylide vs [pyridine] and extrapolating to zero pyridine concentration. In the case of (p-chlorobenzyl)chlorocarbene, the carbene decay can be monitored directly at 310 nm, whereas in [p-(trifluoromethyl)benzyl]chlorocarbene, the 285-nm trace may bc analyzed as the sum of the absorption of the carbene and of the product beta-chlorostyrenes. A Hammett plot of the logarithms of the rate constants for 1,2-H migration vs sigma(p) values gave a rho-value of -1.0, consistent with a hydride-like 1,2-H shift to the carbene center. The rate constants for the cyclopropanation of carbenes with tetramethylethylene (TME) were determined. In particular, the cyclopropanation of (p-chlorobenzyl)chlorocarbene with TME gave a negative activation energy of -4.7 kcal mol-1.PT: J; CR: BONNEAU R, 1989, J AM CHEM SOC, V111, P5973 BONNEAU R, 1989, J PHYS CHEM-US, V93, P4802 CARMICHAEL I, 1986, J PHYS CHEM REF DATA, V15, P1 DOYLE MP, 1987, J ORG CHEM, V52, P1619 EVANSECK JD, 1990, J PHYS CHEM-US, V94, P5518 GOULD IR, 1985, TETRAHEDRON, V41, P1987 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 HO GJ, 1989, J AM CHEM SOC, V111, P6875 HOUK KN, 1984, J AM CHEM SOC, V106, P4291 JACKSON JE, 1989, J AM CHEM SOC, V111, P6874 JONES M, 1980, REACTIVE INTERMEDIAT, V2 JONES WM, 1980, REARRANGEMENTS GROUN KIRMSE W, 1971, CARBENE CHEM LAVILLA JA, 1989, J AM CHEM SOC, V111, P6877 LIU MTH, 1908, J ORG CHEM, V52, P4223 LIU MTH, 1985, J CHEM SOC CHEM COMM, P982 LIU MTH, 1987, CHEM DIAZIRINES, CH5 LIU MTH, 1989, J AM CHEM SOC, V111, P6873 LIU MTH, 1989, J CHEM SOC CHEM COMM, V12 LIU MTH, 1990, J AM CHEM SOC, V112, P3915 LIU MTH, 1992, J PHOTOCH PHOTOBIO A, V63, P115 MORGAN S, 1991, J AM CHEM SOC, V113, P2782 MOSS RA, 1986, J AM CHEM SOC, V108, P7028 MOSS RA, 1990, J AM CHEM SOC, V112, P5642 SCHAEFER HF, 1979, ACCOUNTS CHEM RES, V12, P288; NR: 25; TC: 27; J9: J AMER CHEM SOC; PG: 4; GA: HT801Source type: Electronic(1
Insertion of phenylchlorocarbenes in the C-H bonds of alkanes: measurement of the rate constants by laser flash photolysis
No full textPhenylchlorocarbenes, produced by photolysis of the parent diazirines, have a very limited lifetime in alkane solvents. The rate of disappearance of p-methyl- and p-chlorophenylchlorocarbenes has been measured in iso-octane, cyclohexane and n-hexane as well as in benzene for comparison. The rate constants of several processes (dimerization, addition to the diazirine, reaction with the solvent, etc. ) contributing to the disappearance of the phenylchlorocarbenes have been determined. The rate of reaction with the solvent, which is much lower in benzene than in alkanes and depends strongly on the nature of the alkane, is assumed to be an insertion of the carbene in the C-H bonds of the solvent. Consequences of this reaction on the chemistry of carbenes produced by continuous irradiation (or thermolysis) of diazirines in alkanes are briefly discussed.PT: J; CR: BENSASSON R, 1971, T FARADAY SOC, V67, P1904 BONNEAU R, 1986, NOUV J CHIM, V10, P425 BONNEAU R, 1991, PURE APPL CHEM, V63, P289 DOYLE MP, 1988, TETRAHEDRON LETT, V29, P5863 GOULD IR, 1985, TETRAHEDRON, V41, P1587 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 LIU MTH, 1987, CHEM DIAZIRINES LIU MTH, 1990, J CHEM SOC CHEM COMM, P1482 LIU MTH, 1992, J AM CHEM SOC, V114, P3604 LIU MTH, 1992, J ORG CHEM, V57, P2483 LIU MTH, 1992, J PHOTOCH PHOTOBIO A, V63, P115 LUTZ H, 1973, J PHYS CHEM-US, V77, P1758 MORGAN S, 1991, J AM CHEM SOC, V113, P2782 MOSS RA, 1990, J AM CHEM SOC, V112, P5642 MOSS RA, 1990, KINETICS SPECTROSCOP; NR: 15; TC: 11; J9: J PHOTOCHEM PHOTOBIOL A-CHEM; PG: 10; GA: JQ196Source type: Electronic(1
Benzylchlorocarbene: origins of Arrhenius curvature in the kinetics of the 1,2-H shift rearrangement
No full textBenzylchlorocarbene (1, BCC) was generated photochemically from benzylchlorodiazirine (2) in isooctane, methylcyclohexane (MCH), and tetrachloroethane (TCE) at temperatures from similar to 30 to -75 degrees C. At -70 degrees C in isooctane, the identified products included Z/E-beta-chlorostyrenes 4 (46.6%), alpha-chlorostyrene 5 (2.4%), 1,1-dichloro-2-phenylethane 6 (1.9%), a BCC-isooctane insertion product 8 (5.5%), carbene dimers 9 (3.8%), and azine 3 (30%). The significant incursion of intermolecular products 3, 8, and 9 implies that laser flash photolytic (LFP) kinetic data for the decay of BCC obtained at low temperature is biased and should not be employed in Arrhenius analyses. Accordingly, previously obtained curved Arrhenius correlations for BCC do not necessarily implicate quantum mechanical tunneling (QMT) in the 1,2-H shift rearrangement of BCC to 4. Similarly in MCH, where BCC affords a solvent insertion product in similar to 44-53% yield, the curved Arrhenius correlation (Figure 1) cannot be readily interpreted. In polar solvents such as TCE, clean H-shift reactions of BCC are obtained even at -71 degrees C; an Arrhenius correlation of LFP kinetic data is linear from 3 to -71 degrees C (Figure 2), affording E-a = 3.2 kcal mol(-1) and log A = 10.0 s(-1). Therefore, QMT does not appear to play a major role in the 1,2-H shift rearrangement of BCC at ambient or near ambient temperature in solution.PT: J; CR: BONNEAU R, 1996, J AM CHEM SOC, V118, P3829 DEAN JA, 1992, LANGES HDB CHEM DIX EJ, 1993, J AM CHEM SOC, V115, P10424 DOX AW, 1941, ORG SYNTH, V1, P5 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 ISAACS NS, 1995, PHYSICAL ORGANIC CHE, P304 JACKSON JE, 1988, J AM CHEM SOC, V110, P5595 KAZANIS S, 1991, J PHYS CHEM-US, V95, P4430 KEATING AE, 1997, COMMUNICATION 0804 LAVILLA JA, 1989, J AM CHEM SOC, V111, P6877 LAVILLA JA, 1990, TETRAHEDRON LETT, V31, P5109 LIU MTH, 1984, TETRAHEDRON, V40, P887 LIU MTH, 1985, CHEM COMMUN, P982 LIU MTH, 1985, J ORG CHEM, V50, P3218 LIU MTH, 1990, J AM CHEM SOC, V112, P3915 LIU MTH, 1992, J AM CHEM SOC, V114, P3604 LIU MTH, 1992, J PHOTOCH PHOTOBIO A, V63, P115 LIU MTH, 1994, ACCOUNTS CHEM RES, V27, P287 LIU MTH, 1994, J PHOTOCH PHOTOBIO A, V84, P133 MODARELLI DA, 1992, J AM CHEM SOC, V114, P7034 MODARELLI DA, 1993, J AM CHEM SOC, V115, P470 MOSS RA, 1987, J AM CHEM SOC, V109, P4341 MOSS RA, 1990, J AM CHEM SOC, V112, P1638 MOSS RA, 1994, ADV CARBENE CHEM, V1, P59 MOSS RA, 1996, J AM CHEM SOC, V118, P12588 MOSS RA, 1997, CHEM COMMUN 0321, P617 MOSS RA, 1997, TETRAHEDRON LETT, V38, P7049 STORER JW, 1993, J AM CHEM SOC, V115, P10426 SUGIYAMA MH, 1992, J AM CHEM SOC, V114, P966 TOMIOKA H, 1984, J AM CHEM SOC, V106, P454 WHITE WR, 1992, J ORG CHEM, V57, P2841 WIERLACHER S, 1993, J AM CHEM SOC, V115, P8943 YEN VQ, 1962, ANN CHIM, V7, P785; NR: 33; TC: 8; J9: J ORG CHEM; PG: 7; GA: ZM109Source type: Electronic(1
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Report of Foreign Travel of S. H. Liu, September 1990
No full textThe author was one of 26 invited lecturers to discuss the latest developments of the physical aspects of electrochemistry. He interacted extensively with other lecturers and many participants from developing countries. He also visited with the Director of the Italian Synchrotron Radiation Source now under construction in Trieste, Italy
A Comparison of Adaptive Beamforming Implementations for Wideband Scenarios
No full textIn this paper, we compare low cost implementations of wideband adaptive beamformers utilising the generalised sidelobe canceller (GSC) in combination with the least-mean squares algorithms. DFT based techniques suffer from unjustified narrowband assumptions. We therefore derive and investigate an overlap-save implementation of the GSC, which offers a steady state suppression of jammers equivalent to a time domain GSC but may be prone to slow convergence. Finally, subband techniques offer a more robust convergence trade-off for a somewhat higher computational cost. Analysis and simulation results revealing some of the algorithms' properties are presented
Thermal decomposition of diazirines in the presence of meta-chloroperoxybenzoic acid. A method to determine the partitioning of reaction pathways
No full textPT: J; CR: AKIBA K, 1977, HETEROCYCLES, V7, P1131 BOYD RJ, 1978, 61ST CAN CHEM C WINN BRADLEY GF, 1977, J CHEM SOC P2, P1214 BRASLAVSKY S, 1977, CHEM REV, V77, P473 CURCI R, 1971, J ORG CHEM, V36, P3774 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 JENNINGS BM, 1976, J AM CHEM SOC, V98, P6416 KIRMSE W, 1971, CARBENE CHEM KOPECKY KR, 1969, CAN J CHEM, V47, P709 LAU A, 1964, SPECTROCHIM ACTA, V20, P97 LIU MTH, 1972, J PHYS CHEM-US, V76, P797 LIU MTH, 1974, CAN J CHEM, V52, P246 LIU MTH, 1974, TETRAHEDRON LETT, P1329 LIU MTH, 1975, TETRAHEDRON, V31, P1645 LIU MTH, 1977, CAN J CHEM, V55, P3596 MEIER H, 1977, ANGEW CHEM INT EDIT, V16, P835 SCHMIDT G, 1963, BIOCHEMISTRY-US, V2, P126 SCHMITZ E, 1964, ANGEW CHEM INT EDIT, V3, P333 SCHMITZ E, 1967, CHEM BER, V100, P2101 SCHWARTZ NN, 1964, J ORG CHEM, V29, P1976 SYNDER JP, 1971, J AM CHEM SOC, V93, P3816 TURRO NJ, 1974, ACCOUNTS CHEM RES, V7, P97; NR: 22; TC: 3; J9: CAN J CHEM; PG: 5; GA: HD871Source type: Electronic(1
Laser Flash Photolysis Studies: 1, 2-Hydrogen Migration to a Carbene
No full textPT: J; CR: ALTMANN JA, 1974, J AM CHEM SOC, V96, P4196 ALTMANN JA, 1975, J AM CHEM SOC, V97, P5217 BODOR N, 1972, J AM CHEM SOC, V94, P9103 BONNEAU R, 1989, J AM CHEM SOC, V111, P5973 BURNETT SM, 1983, CHEM PHYS LETT, V100, P124 CELEBI S, 1993, J AM CHEM SOC, V115, P8613 DIX EJ, 1993, J AM CHEM SOC, V115, P10424 EVANSECK JD, 1990, J PHYS CHEM-US, V94, P5518 FRENKING G, 1984, TETRAHEDRON, V40, P2123 FREY HM, 1962, J CHEM SOC, P2293 FREY HM, 1965, J CHEM SOC, P1700 FREY HM, 1966, ADV PHOTOCHEM, V4, P225 FRIEDMAN L, 1959, J AM CHEM SOC, V81, P5512 GALLO MM, 1992, J PHYS CHEM-US, V96, P1515 HO GJ, 1989, J AM CHEM SOC, V111, P6875 HOFFMANN R, 1968, J AM CHEM SOC, V90, P1485 HOUK KN, 1984, J AM CHEM SOC, V106, P4291 HOUK KN, 1984, J AM CHEM SOC, V106, P4293 HOUK KN, 1985, TETRAHEDRON, V41, P1555 JACKSON JE, 1988, J AM CHEM SOC, V110, P5595 JACKSON JE, 1989, J AM CHEM SOC, V111, P6874 JACKSON JE, 1994, ADV CARBENE CHEM, V1 JONES WM, 1980, REARRANGEMENTS GROUN, V1, P95 KHODABANDEH S, 1993, J PHYS CHEM-US, V97, P4360 KIRMSE W, 1965, ANGEW CHEM INT EDIT, V4, P692 KIRMSE W, 1971, CARBENE CHEM KRAMER KAW, 1962, TETRAHEDRON LETT, P1095 KYBA EP, 1977, J AM CHEM SOC, V99, P8330 LAVILLA JA, 1989, J AM CHEM SOC, V111, P6877 LAVILLA JA, 1990, TETRAHEDRON LETT, V31, P5109 LIU MTH, IN PRESS J PHOTOCHEM LIU MTH, 1985, J CHEM SOC CHEM COMM, P982 LIU MTH, 1986, J PHYS CHEM-US, V90, P75 LIU MTH, 1987, CHEM DIAZIRINES, V1, P111 LIU MTH, 1987, J ORG CHEM, V52, P4223 LIU MTH, 1989, J AM CHEM SOC, V111, P6873 LIU MTH, 1989, J PHYS CHEM-US, V93, P7298 LIU MTH, 1990, J AM CHEM SOC, V112, P3915 LIU MTH, 1990, J CHEM SOC CHEM COMM, P1650 LIU MTH, 1992, J AM CHEM SOC, V114, P3604 LIU MTH, 1992, J ORG CHEM, V57, P2483 LIU MTH, 1992, J PHYS ORG CHEM, V5, P285 LIU MTH, 1993, J PHYS ORG CHEM, V6, P696 LIU MTH, 1994, RES CHEM INTERMEDIAT, V20, P195 MA B, 1994, J AM CHEM SOC, V116, P3539 MANSOOR AM, 1966, TETRAHEDRON LETT, P1733 MODARELLI DA, 1991, J AM CHEM SOC, V113, P8985 MODARELLI DA, 1992, J AM CHEM SOC, V114, P7034 MODARELLI DA, 1993, J AM CHEM SOC, V115, P10440 MODARELLI DA, 1993, J AM CHEM SOC, V115, P470 MOSS RA, 1989, ACCOUNTS CHEM RES, V22, P15 MOSS RA, 1990, J AM CHEM SOC, V112, P1638 MOSS RA, 1990, J AM CHEM SOC, V112, P5642 MOSS RA, 1992, J PHYS ORG CHEM, V5, P104 MOSS RA, 1992, TETRAHEDRON LETT, V33, P4287 MOSS RA, 1993, J CHEM SOC CHEM COMM, P1597 MOSS RA, 1993, J PHYS CHEM-US, V97, P13413 MOSS RA, 1993, J PHYS ORG CHEM, V6, P126 MOSS RA, 1993, TETRAHEDRON LETT, V34, P927 MOSS RA, 1994, ADV CARBENE CHEM, V1 MULLERREMMERS PL, 1985, J AM CHEM SOC, V107, P7275 NICKON A, 1993, ACCOUNTS CHEM RES, V26, P84 NOBES RH, 1980, CHEM PHYS LETT, V74, P269 PLATZ MS, 1994, RES CHEM INTERMEDIAT, V20, P175 RAGHAVACHARI K, 1982, CHEM PHYS LETT, V85, P145 REGITZ M, 1989, METHOD ORGAN CHEM, E, B19 SCHAEFER HF, 1979, ACCOUNTS CHEM RES, V12, P288 SEBURG RA, 1992, J AM CHEM SOC, V114, P7183 SMALL RD, 1977, CHEM PHYS LETT, V50, P431 SMALL RD, 1977, J PHYS CHEM-US, V81, P828 SMALL RD, 1978, CHEM PHYS LETT, V59, P246 STEVENS IDR, 1989, TETRAHEDRON LETT, V30, P481 STORER JW, 1993, J AM CHEM SOC, V115, P10426 SU DTT, 1978, J AM CHEM SOC, V100, P1872 SUGIYAMA MH, 1992, J AM CHEM SOC, V114, P966 TOMIOKA H, 1980, J AM CHEM SOC, V102, P7817 TOMIOKA H, 1984, J AM CHEM SOC, V106, P454 TOMIOKA H, 1986, CHEM LETT, P695 TURRO NJ, 1982, J AM CHEM SOC, V104, P1754 WARNER PM, 1984, TETRAHEDRON LETT, V25, P4211 WHITE WR, 1992, J ORG CHEM, V57, P2841 WIERLACHER S, 1993, J AM CHEM SOC, V115, P8943; NR: 82; TC: 56; J9: ACCOUNT CHEM RES; PG: 8; GA: PL566Source type: Electronic(1
The thermolysis and photolysis of diazirines
No full textPT: J; CR: AMRICH MJ, 1964, J AM CHEM SOC, V86, P292 ARCHER WH, 1976, J CHEM SOC F1, V72, P1448 BAYLEY H, 1978, BIOCHEMISTRY-US, V17, P2420 BIGOT B, 1978, J AM CHEM SOC, V100, P6575 BOTTOMLEY GA, 1964, AUST J CHEM, V17, P406 BRADLEY GF, 1977, J CHEM SOC P2, P1214 BRASLAVSKY S, 1977, CHEM REV, V77, P473 BRIDGE MR, 1969, J CHEM SOC A, P91 BRUNNER J, 1980, J BIOL CHEM, V255, P3313 BURKHOLDER CD, 1980, J AM CHEM SOC, V102, P2841 CADMAN P, 1974, J SA CHEM I, V27, P149 CHANG KT, 1979, J AM CHEM SOC, V101, P5082 CHAPMAN OL, 1976, J AM CHEM SOC, V98, P7844 CRISTY SS, 1970, INT J MASS SPECTROM, V5, P319 ENGEL PS, 1980, CHEM REV, V80, P99 ENGELBRECHT WJ, 1975, J S AFR CHEM I, V28, P144 ENGELBRECHT WJ, 1975, J S AFR CHEM I, V28, P148 ENGELBRECHT WJ, 1975, J S AFR CHEM I, V28, P158 ERNI B, 1980, J AM CHEM SOC, V102, P3888 FIGUERA JM, 1978, J CHEM SOC F1, P809 FRANICH RA, 1972, J CHEM SOC P1, P2034 FREY HM, 1962, J AM CHEM SOC, V84, P2647 FREY HM, 1962, J CHEM SOC, P3865 FREY HM, 1962, P CHEM SOC, P79 FREY HM, 1964, J CHEM SOC, P4700 FREY HM, 1965, J CHEM SOC, P1700 FREY HM, 1965, J CHEM SOC, P3101 FREY HM, 1966, ADV PHOTOCHEM, V4, P225 FREY HM, 1966, J CHEM SOC A, P968 FREY HM, 1970, J CHEM SOC A, P1916 FREY HM, 1977, J CHEM SOC F1, P2010 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 GRILLER D, UNPUB JENNINGS BM, 1976, J AM CHEM SOC, V98, P6416 JONES M, 1973, CARBENE, V1 JONES WE, 1976, J PHOTOCHEM, V5, P311 KIRMSE W, 1971, CARBENE CHEM LELEU MJ, 1978, CAHIERS NOTES DOCUME, V93, P569 LIU MTH, UNPUB LIU MTH, 1972, CAN J CHEM, V50, P3009 LIU MTH, 1972, INT J CHEM KINET, V4, P229 LIU MTH, 1972, J PHYS CHEM-US, V76, P797 LIU MTH, 1973, CAN J CHEM, V51, P2393 LIU MTH, 1974, CAN J CHEM, V52, P246 LIU MTH, 1974, CHEM ENG NEWS 0909, P3 LIU MTH, 1974, J CHEM SOC P2, P937 LIU MTH, 1977, CAN J CHEM, V55, P3596 LIU MTH, 1977, J ORG CHEM, V42, P3450 LIU MTH, 1977, TETRAHEDRON LETT, P3139 LIU MTH, 1979, CAN J CHEM, V57, P1299 LIU MTH, 1980, J PHYS CHEM-US, V84, P3184 LIU MTH, 1981, J CHEM SOC P2, P53 LOWE G, 1971, J CHEM SOC CHEM COMM, P1135 MAEDA Y, 1979, J AM CHEM SOC, V101, P837 MANSOOR AM, 1966, TETRAHEDRON LETT, P1733 MEIER H, 1977, ANGEW CHEM INT EDIT, V16, P835 MILLIGAN DE, 1964, J CHEM PHYS, V41, P1199 MITSCH RA, 1964, J HETEROCYCLIC CHEM, V1, P59 MITSCH RA, 1965, J AM CHEM SOC, V87, P758 MITSCH RA, 1966, J HETEROCYCLIC CHEM, V3, P245 MIYASHI T, 1978, J CHEM SOC CHEM COMM, P442 MOFFAT JB, 1978, CHEM DIAZONIUM DIA 1 MOORE CB, 1964, J CHEM PHYS, V41, P3504 MOSS RA, 1967, TETRAHEDRON LETT, P4905 MOSS RA, 1970, J AM CHEM SOC, V92, P6951 MOSS RA, 1978, J AM CHEM SOC, V100, P6788 MOSS RA, 1978, J CHEM SOC CHEM COMM, P775 MOSS RA, 1978, TETRAHEDRON LETT, P1935 MOSS RA, 1979, TETRAHEDRON LETT, P1277 NEUVARAND EW, 1967, J PHYS CHEM-US, V71, P1229 OVERBERGER CG, 1963, TETRAHEDRON LETT, P1405 PAULSEN SR, 1960, ANGEW CHEM, V72, P781 PIERCE L, 1962, J AM CHEM SOC, V84, P2651 SCHMITZ E, 1961, ANGEW CHEM, V73, P115 SCHMITZ E, 1961, TETRAHEDRON LETT, P612 SCHMITZ E, 1962, CHEM BER, V95, P2714 SCHMITZ E, 1967, CHEM BER, V100, P2093 SCHMITZ E, 1967, DREIRINGE ZWEI HETER SCHMITZ E, 1971, 23RD INT C PUR ALL C, V2, P283 SCHMITZ E, 1979, ADV HETEROCYCL CHEM, V24, P63 SMITH NP, 1978, TETRAHEDRON LETT, P1931 SMITH NP, 1979, J CHEM SOC P2, P213 SMITH RAG, 1975, J CHEM SOC P2, P686 SU TT, 1978, J AM CHEM SOC, V100, P1872 VOIGT E, 1975, ANGEW CHEM INT EDIT, V14, P103 VOIGT E, 1975, CHEM BER, V108, P3326; NR: 86; TC: 58; J9: CHEM SOC REV; PG: 14; GA: PJ228Source type: Electronic(1
Energy barrier for 1,2-chlorine migration in α-methyl-αlpha-chlorobenzyl(chloro)carbene
No full textPT: J; CR: BONNEAU R, 1989, J AM CHEM SOC, V111, P5973 BONNEAU R, 1989, J PHYS CHEM-US, V93, P4802 GRAHAM WH, 1965, J AM CHEM SOC, V87, P4396 LIU MT, UNPUB LIU MTH, 1985, J CHEM SOC CHEM COMM, P982 LIU MTH, 1990, J AM CHEM SOC, V112, P3915 PLATZ MS, 1989, J AM CHEM SOC, V111, P6874 WARNER PM, 1984, TETRAHEDRON LETT, P4211; NR: 8; TC: 5; J9: J CHEM SOC CHEM COMMUN; PG: 3; GA: EL425Source type: Electronic(1
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