Stereoselective Functionalization at C-9 of Retinal: Synthesis of 9-trans-19-Nor-9-haloretinal Analogs.
作者:Tetsuro SHINADA、Kazuo YOSHIHARA
DOI:10.1248/cpb.44.264
日期:——
Stereoselective functionalization at C-9 of retinal based on the use of the C4+X-unit is described. A sequential linkage of C4+X-units (X=Cl, Br, and I) with ylide 8 (C10) and phosphonate 12 (C5)selectively gave 9-trans-19-nor-9-Cl, Br, and I-retinal derivatives.
基于C4+X单元的使用,报道了视黄醛C-9位点的立体选择性功能化。通过C4+X单元(X=Cl、Br和I)与亚砜8(C10)和膦酸盐12(C5)的序列连接,选择性地合成了9-反-19-去甲-9-氯、溴和碘-视黄醛衍生物。