Application of Carbohydrate-Templated Asymmetric Diels–Alder Reaction to the Syntheses of <i>ent</i>-Penicillones A and B
作者:Chia-Hao Weng、Day-Shin Hsu、Chun-Chen Liao
DOI:10.1021/acs.joc.6b02055
日期:2016.11.18
carbohydrate-templated asymmetric intramolecular Diels–Alderreaction of a masked o-benzoquinone (MOB) 9 and an aqueous acid-catalyzed intramolecular aldol reaction are the key synthetic steps. In addition, the absolute configurations of the bicyclo[2.2.2]oct-5-en-2-one core obtained from the per-O-benzylated α-d-glucopyranosyl as a carbohydrate template in the intramolecular Diels–Alderreaction of MOBs were