Nitro-olefin trapping reaction of enolates generated by conjugate addition reaction: short syntheses of PGE1, 6-Oxo-PGE1, 6-Oxo-PGF1α, and PGI2
作者:Toshio Tanaka、Atsuo Hazato、Kiyoshi Bannai、Noriaki Okamura、Satoshi Sugiura、Kenji Manabe、Takeshi Toru、Seizi Kurozumi、Masaaki Suzuki、Toshio Kawagishi、Ryoji Noyori
DOI:10.1016/s0040-4020(01)90018-3
日期:1987.1
in situ generated by conjugate addition of organocopper reagents to the chiral oxygenated cyclopentenone synthon, R-4, gives the three-component coupling products in a regiospecific manner. The intermediary nitronate anion 17 is further transformed into the nitro compound or 6-oxo-PGE1 (19) in a single pot. This coupling reaction is applicable to syntheses of naturally occurring prostaglandins such
通过将有机铜试剂共轭添加到手性含氧环戊烯酮合成子R-4中,原位生成的烯醇化物被硝基烯烃捕获,从而以区域特异性方式生成三组分偶联产物。在单个罐中将中间体亚硝酸根阴离子17进一步转化为硝基化合物或6-氧代-PGE 1(19)。该偶联反应是适用于天然存在的前列腺素如PGE的合成1,6-氧代PGF 1α,和PGI 2。