BURNIER, GERALD;VOGEL, PIERRE, HELV. CHIM. ACTA, 73,(1990) N, C. 985-1001
作者:BURNIER, GERALD、VOGEL, PIERRE
DOI:——
日期:——
Synthesis and Circular Dichroism of Optically Pure (±)-(1<i>S</i>,2<i>S</i>,5<i>S</i>)-5-Methoxy-3,4,6,7-tetramethylidenebicyclo[3.2.1]oct-2-yl Derivatives. Baker's Yeast Reduction of 4-Methoxy-5,6,7,8-tetramethylidenebicyclo[2.2.2]octan-2-one
作者:Gérald Burnier、Pierre Vogel
DOI:10.1002/hlca.19900730425
日期:1990.6.20
Baker'syeastreduction of 4-methoxy-5,6,7,8-tetramethylidenebicyclo[2.2.2]octan-2-one (11) under fermenting conditions afforded (−)-(1S,2S,4R)-4-methoxy-5,6,7,8-tetramethylidenebicyclo[2.2.2]octan-2-ol ((−)-13) in 60% yield with an e.e. > 99.5%. Its methanesulfonate (−)-14 was hydrolyzed and rearranged with high stereo-selectivity into (+)-(1S,2S,5S)-5-methoxy-3,4,6,7-tetramethylidenebicyclo[3.2.1]octan-2-ol