grignar相关论文
目的：研究抗真菌药特比萘芬的合成路线及工艺。方法：以频哪酮为起始原料，经氯代，脱氯化氢，格氏反应得6,6-二甲基-1-庚烯-4-炔-3-醇(5)，溴......
Synthesis of （3aS,6aR）- 1,3-Dibenzyl-tetrahydro- 1H-thieno[3,4-d]-imidazole-2（3H）-one-4-ylidenepenta
The intermediate of d-biotin, (3aS,6aR)-1,3-dibenzyltetrahydro-1H-thieno[3,4-d]-imidazole-2(3H)-one-4-ylidenepentanoil a......
