MICROBIAL STEREODIFFERENTIATING REDUCTION OF (±)-4-METHYL-1-OXO[2.2]METACYCLOPHANE AND REVISION OF THE ABSOLUTE CONFIGURATION OF 4-SUBSTITUTED [2.2]METACYCLOPHANES
作者:Masao Nakazaki、Yoshiki Hirose、Toru Shimizu、Takaaki Suzuki、Akira Ishii、Masaru Makimura
DOI:10.1246/cl.1979.1507
日期:1979.12.5
The (−)-Cotton effect indicates (pS)-configuration to (−)-4-methyl-1-oxo[2.2]metacyclophane (17) which was isolated from a culture solution of (±)-14 with Rhodotorula rubra, and the conversion of (−)-17 to (+)-4-methyl[2.2]metacyclophane (21) via 19 assigns (pR)-configuration to (+)-21, contrary to Schlogl’s proposal.
(-)-Cotton 效应表明 (-)-4-methyl-1-oxo[2.2]metacyclophane (17) 的 (pS)-构型,该 (-)-4-methyl-1-oxo[2.2]metacyclophane (17) 从 (±)-14 与红酵母的培养液中分离出来,和(-)-17 通过 19 转化为 (+)-4-甲基[2.2]metacyclophane (21) 将 (pR)-构型分配给 (+)-21,这与 Schlogl 的提议相反。