Diastereoselective carboxyl migrations of 3-arylbenzofuranones.

Diastereoselective carboxyl migrations of 3-arylbenzofuranones.
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3-芳基苯并呋喃酮的非对映选择性羧基迁移。

DOI:
10.1021/jo7021444
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发表时间:
2008
期刊:
The Journal of organic chemistry
影响因子:
--
通讯作者:
Vedejs,Edwin
Vedejs,Edwin
中科院分区:
--
文献类型:
--
作者:
Peris,Gorka;Vedejs,Edwin

文献摘要

相似文献

由手性氯甲酸盐在亲核催化剂的作用下重排得到的混合碳酸苯并呋喃,得到具有可变dr的羧基苯并呋喃。使用手性亲核催化剂对dr有一定的改善,但通过对助剂和催化剂的优化得到了更好的结果。因此,以9:1 dr得到8k。
Mixed benzofuranyl carbonates derived from chiral chloroformates rearranged in the presence of nucleophilic catalysts to giveC-carboxylated benzofurans with variable dr. The use of chiral nucleophilic catalysts gave modest improvement in dr, but better results were obtained by optimizing auxiliary and catalyst. Thus,8kwas obtained with 9:1 dr.