1,721,010 research outputs found
DEHYDRATION OF TERTIARY BICYCLO[3.3.1]NONAN-9-OL-2-ONES - REARRANGEMENT TO CIS-FUSED HEXAHYDROINDEN-1-ONES
No full textHSAB driven chemoselectivity in alkylation of uracil derivatives. A high yielding preparation of 3-alkylated and unsymmetrically 1,3-diakylated uracils
No full textBICYCLO[3.3.1]NONANE APPROACH TO TRIQUINANES - FORMAL SYNTHESIS OF (+/-)-DELTA-9(12)CAPNELLENE AND (+/-)-DELTA-9(12)CAPNELLENE-8-BETA-10-ALPHA-DIOL
No full textA new synthetic strategy for natural triquinanes is presented as a model study. Stereospecific rearrangement of the ready accessible bicyclo[3.3.1] nonanic acetoxychloride 6 gave the cis-pentalanic hydroxyaldehyde 5, which has been converted into the ketone 4 already reported as a key intermediate in some syntheses of the title capnellenes
SILICA SUPPORTED TETRABUTYLAMMONIUM FLUORIDE AS A CATALYST FOR THE SILYLATION OF CARBONYL AND HYDROXY COMPOUNDS WITH ETHYLTRIMETHYLSILYLACETATE
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A VERSATILE ROUTE TO POTENTIAL DIHYDROFOLATE-REDUCTASE INHIBITORS VIA THE HITHERTO UNKNOWN 6-BENZYL-2-(O-METHYL)URACILS - SYNTHESIS OF ISOTRIMETHOPRIM
No full textA HIGHLY REGIOSELECTIVE AND STEREOSELECTIVE-C5 OXYFUNCTIONALIZATION OF COPROSTANE STEROIDS BY DIOXIRANES - AN IMPROVED ACCESS TO PROGESTOGEN AND ANDROGEN HORMONES
No full textCoprostane steroids are selectively oxyfunctionalized at C5 by dimethyldioxirane and methyltrifluoromethyldioxirane to give useful intermediates for bioactive compounds
6-ALKYL-2-METHOXY-4(3H)-PYRIMIDINONES AND 5,6-DIALKYL-2-METHOXY-4(3H)-PYRIMIDINONES IN THE TRANSFORMATIONS OF PYRIMIDINES - CONVERSION INTO 2-SUBSTITUTED "AMINO-CHLORO-PYRIMIDINE-DERIVATIVES AND 4-CHLORO-PYRIMIDINE-DERIVATIVES
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