The synthesis of (R)-1-(2-oxocyclopentyliden)-2-alkanols and the (S)-forms, and their bio-antimutagenic activity against UV-induced Escherichia coli WP2 B/r Trp−
摘要:
(R)-1-(2-oxocyclopentyliden)-2-alkanols (1r-a and 1r-b) and the (S)-forms, 1s-a and 1s-b, were enantiomerically synthesized from (R)-2-[(R)-O-MEMmandelyloxy]alkanals (6r-a and 6r-b) and the (S)-alkanals, 6s-a and 6s-b. The (R)-isomers (1r-a and 1r-b) showed bio-antimutagenic acitivity against UV-induced Escherichia coli WP2 B/r Trp. (C) 1997, Elsevier Science Ltd.
Novel intermediates for the synthesis of carbocyclic spiro compounds
作者:Vasu Nair、Tamera S. Jahnke
DOI:10.1016/s0040-4039(01)91072-x
日期:1984.1
Cyclic dienaminones, synthesized from the α-carbon elongation reaction of cyclic ketones with vinamidinium salts, are useful synthetic intermediates to carbocyclic spiro compounds.
由环酮与vinamidinium盐的α-碳延伸反应合成的环二烯酮是碳环螺化合物的有用合成中间体。
Gas-phase Broensted versus Lewis acid-base reactions of 6,6-dimethylfulvene. A sensitive probe of the electronic structures of organic anions
作者:Mark D. Brickhouse、Robert R. Squires
DOI:10.1021/ja00217a002
日期:1988.4
Die Michael-Addition von Enolaten und Enaminaten an 2-(<i>N</i>-Methylanilino)-acrylonitril. Eine einfache und vielseitige Synthese von 1,4-Dicarbonyl-Verbindungen