Stepwise controlled reduction of α-Oxoketene dithioacetals with Zn/ZnCl 2 -TMEDA in ethanol
作者:K Mallik Yadav、Joghee R Suresh、Balaram Patro、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa
DOI:10.1016/0040-4020(96)00139-1
日期:1996.3
α-Oxoketenedithioacetals 1 are shown to undergo highly selective conjugate reduction with Zn/ZnCl2-TMEDA in refluxing ethanol under controlled reaction conditions to afford β-methylthiomethylene ketones 6, β-methylthioketones 7 and the completely desulphurized α-methylketones 8 in sequential manner.
Control of chemo- and stereoselectivity in the reactions of organocuprates with .alpha.-oxoketene dithioacetals
作者:R. Karl Dieter、Louis A. Silks、Jeffrey A. Fishpaugh、M. E. Kastner
DOI:10.1021/ja00302a014
日期:1985.8
Les α-oxocetene dithioacetals subissent une substitution selective par les reactifs organo-Cu-Li pour conduire a des β-alkylthio α-β-enones. On examine les effets de la structure, du coordinat de Cu transferable, du reactif Cu et du solvant sur la chimio- et la stereoselectivite de la reaction
Les α-oxocetene dithioacetals 存在未取代选择性的反应性有机-Cu-Li 倾倒导致 des β-烷硫基 α-β-烯酮。在检查les effets de la structure, du coordinat de Cu transferable, du reactif Cu et du solvant sur la chimio- et la立体选择性德拉反应
Partial Reductive Demethylthiolation of<i>a</i>-Ketoketene<i>S,S</i>-Acetals with Sodium Borohydride/Nickel Chloride: A New, General Method for 2-Methylthio-1-alkenyl Ketones
作者:B. Myrboh、L. W. Singh、H. Ila、H. Junjappa
DOI:10.1055/s-1982-29791
日期:——
RAO, CH. SRINIVASA;CHAKRASALI, R. T.;ILA, HIRIYAKKANAVAR;JUNJAPPA, HIRIYA+, TETRAHEDRON, 46,(1990) N, C. 2195-2204
作者:RAO, CH. SRINIVASA、CHAKRASALI, R. T.、ILA, HIRIYAKKANAVAR、JUNJAPPA, HIRIYA+
DOI:——
日期:——
MYRBOH, B.;SINGH, L. W.;ILA, H.;JUNJAPPA, H., SYNTHESIS, BRD, 1982, N 4, 307-309