MUKAIYAMA TERUAKI; CLARK R. S. J.; IWASAWA NOBUHARU, CHEM. LETT.,(1987) N 3, 479-482
作者:MUKAIYAMA TERUAKI、 CLARK R. S. J.、 IWASAWA NOBUHARU
DOI:——
日期:——
The tin(II) enolate addition reactions to α, β-unsaturated ketones and quinones
作者:Teruaki Mukaiyama、Nobuharu Iwasawa、Takeshi Yura、R.S.J. Clark
DOI:10.1016/s0040-4020(01)87679-1
日期:1987.1
The reaction of tin(II) enolates with various α ,β-unsaturated carbonyl compounds is examined. When TMSCl is added as an activator of the α,β-unsaturated ketones, the Michael additionreaction proceeds smoothly to give the corresponding 1,4-adduct in good yield. When 1,4-benzoquinone and its mono-imino derivative are employed as acceptors in conjunction with dichloromethylsilane- DMAP activator, a
A Convenient Preparation of α-(<i>p</i>-Hydroxy- or<i>p</i>-Aminophenyl) Carbonyl Compounds. Addition–Reduction Reaction of Tin(II) Enolate with p-Benzoquinone and Its Mono-<i>N</i>-tosylimino Derivative
作者:Teruaki Mukaiyama、Richard S. J. Clark、Nobuharu Iwasawa
DOI:10.1246/cl.1987.479
日期:1987.3.5
Tin(II) enolates react with p-benzoquinone and its mono-N-tosylimino derivative to give 1,2-adducts in good yield. These can be reduced in situ to α-(p-hydroxy- or p-aminophenyl) carbonyl derivatives by addition of dichloromethylsilane and dimethylaminopyridine.
锡 (II) 烯醇化物与对苯醌及其单-N-甲苯磺酰亚氨基衍生物反应,以良好的产率得到 1,2-加合物。通过加入二氯甲基硅烷和二甲氨基吡啶,这些可以原位还原为 α-(对羟基或对氨基苯基)羰基衍生物。