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Merck
  • Bio-inspired polyene cyclization: synthesis of tetracyclic terpenoids promoted by steroidal acetal-SnCl4.

Bio-inspired polyene cyclization: synthesis of tetracyclic terpenoids promoted by steroidal acetal-SnCl4.

Chemical communications (Cambridge, England) (2008-03-14)
Yu-Jun Zhao, Teck-Peng Loh
摘要

This communication describes a highly efficient intermolecular polyene cyclization method using steroidal acetals as the initiators to synthesize tetracyclic terpenoids; both good yields and good asymmetric induction were obtained.

材料
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品牌
产品描述

Sigma-Aldrich
四氯化锡, 98%
Sigma-Aldrich
四氯化锡, 99.995% trace metals basis
Sigma-Aldrich
氯化锡(IV) 溶液, 1.0 M in methylene chloride