173,281 research outputs found
Unprecedented Borylene Insertion into a C–N Bond
No full textGhadwal R, Schürmann CJ, Engelhardt F, Steinmetzger C. Unprecedented Borylene Insertion into a C-N Bond. European Journal of Inorganic Chemistry. 2014;2014(29):4921-4926.Carbenes are well established reactive intermediates and play an important role in organic synthesis, whereas the scope of borylenes is rather limited. Selective borylene insertion into a C–N bond to yield boryl‐functionalized N‐heterocyclic olefins (NHOs), [{N(Dipp)N(DippBH)CHCH}CCH2]2 (6) and [{N(Dipp)N(DippBPh)CHCH}CCH2][{N(Dipp)N(2‐iPr‐6‐CHMeCH2BC6H3)CHCH}CCH2] (8) (Dipp = 2,6‐iPr2C6H3) is reported for the first time. KC8 reduction of (IPrCH2)BRX2 adducts (IPrCH2 = {N(Dipp)CH}2CCH2; R = X = I (2); R = Ph, X = Cl (4)) affords compounds 6 and 8. Surprisingly, treatment of (IPrCH2)BHCl2 (3) with KC8 yields completely unexpected diborane compound (IPr)BH2BH2(IPr) (7). Compound 2 is unstable in THF and induces ring opening reaction to form the borenium ion [(IPrCH2)B{O(CH2)4I}2]I (5
Geschichte der Engelhardt-Brauerei Aktiengesellschaft /
No full textHistory of Ignatz Nacher's Engelhardt brewery from its beginnings in 1868 until its rise to Germany's second largest brewery with more than 1000 employees; description of beer brewing and brewers' association.Also included is the reprint of a 7-page article about the Engelhardt brewery in Berlin.Ignatz Nacher was born in Silesia in 1868. He worked as an apprentice in a cigar store. In 1901 he entered the Engelhardt brewery as a employee. Under his management the brewery became Germany's second largest brewery in the 1920s. He died shortly after his emigration to Switzerland in 1939. Hermann Schoeler was a member of the board of directors of the Engelhardt brewery.Brief summary in Max Kreutzberger: "Leo Baeck Institute New York, Bibliothek und Archiv; Katalog": C 28
Cissuvora Engelhardt 1946
No full text<i>Cissuvora</i> Engelhardt, 1946 <p> (type species <i>Cissuvora ampelopsis</i> Engelhardt, 1946, original designation)</p> <p> <i>C. ampelopsis</i> Engelhardt, 1946</p>Published as part of <i>Kallies, Axel, Ogane, Hiromichi & Yata, Naoki, 2020, A new species of the genus Toleria Walker, [1865] from northern Vietnam and Laos with establishment of a new generic synonymy in Cissuvorini (Lepidoptera, Sesiidae), pp. 123-132 in Zootaxa 4728 (1)</i> on page 125, DOI: 10.11646/zootaxa.4728.1.6, <a href="http://zenodo.org/record/3614587">http://zenodo.org/record/3614587</a>
Engelhardt, Infant (Death, 1897-09-25)
No full textAddress: 2611 Vine St.Age at death: 1 da.Pg 87/335/1897/MW S/City/Dr. J. C. Miller/C. Engelhardt/Spring GroveOriginal record filed in drawer labeled 'EN-ERNST, M'
Engelhardt, Infant (Death, 1898-06-30)
No full textAddress: 2611 Vine St.Age at death: 11 days394/Pg 60/1898/F W W/Cinti, Ohio/Dr. Isaac C. Miller/Charles Engelhardt(Father)/Spring Grove Cem.Original record filed in drawer labeled 'EN-ERNST, M'
DISTRIBUTION, INDUCIBILITY AND BIOLOGICAL FUNCTION OF THE CLONED AND EXPRESSED HUMAN BETA-FC RECEPTOR-II
No full textENGELHARDT W, GEERDS C, Frey J. DISTRIBUTION, INDUCIBILITY AND BIOLOGICAL FUNCTION OF THE CLONED AND EXPRESSED HUMAN BETA-FC RECEPTOR-II. EUROPEAN JOURNAL OF IMMUNOLOGY. 1990;20(6):1367-1377
ORGANIZATION OF HUMAN FCRII AND FCRII-LIKE (BETA-FCRII) GENES - STRUCTURAL HOMOLOGY TO HLA CLASS-I AND CLASS-II GENES
No full textENGELHARDT W, GEERDS C, Frey J. ORGANIZATION OF HUMAN FCRII AND FCRII-LIKE (BETA-FCRII) GENES - STRUCTURAL HOMOLOGY TO HLA CLASS-I AND CLASS-II GENES. MOLECULAR IMMUNOLOGY. 1990;27(4):379-382
Facile access to silyl-functionalized N-heterocyclic olefins with HSiCl3
No full textGhadwal R, Reichmann SO, Engelhardt F, Andrada DM, Frenking G. Facile access to silyl-functionalized N-heterocyclic olefins with HSiCl3. Chemical Communications. 2013;49(82): 9440.N-heterocyclic olefins (NHOs), IPrCH2 (1) and SIPrCH2 (2) (IPrCH2 = {N(2,6-iPr2C6H3)CH}2CCH2 and SIPrCH2 = {N(2,6-iPr2C6H3)CH2}2CCH2), react with HSiCl3 and afford IPrCH(SiHCl2) (3) and SIPrCH(SiHCl2) (4), respectively. Compounds 3 and 4 have been isolated in almost quantitative yield. Interestingly, treatment of the silylene IPr·SiCl2 with 1 also affords 3, where silylene insertion into a C–H bond is observed. Computational analysis shows a high energy barrier for silylene insertion, therefore a protonation–deprotonation mechanism is more likely
Are language production problems apparent in adults who no longer meet diagnostic criteria for attention-deficit/hyperactivity disorder?
No full textIn this study, we examined sentence production in a sample of adults (N = 21) who had had attention-deficit/hyperactivity disorder (ADHD) as children, but as adults no longer met DSM-IV diagnostic criteria (APA, 2000). This “remitted” group was assessed on a sentence production task. On each trial, participants saw two objects and a verb. Their task was to construct a sentence using the objects as arguments of the verb. Results showed more ungrammatical and disfluent utterances with one particular type of verb (i.e., participle). In a second set of analyses, we compared the remitted group to both control participants and a “persistent” group, who had ADHD as children and as adults. Results showed that remitters were more likely to produce ungrammatical utterances and to make repair disfluencies compared to controls, and they patterned more similarly to ADHD participants. Conclusions focus on language output in remitted ADHD, and the role of executive functions in language production
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