申请人:Toray Industries, Inc.
公开号:US06103914A1
公开(公告)日:2000-08-15
Optically active materials of tricyclic compounds, for example, cyclopenta [b] benzofuran derivatives represented by the following formula: ##STR1## wherein R.sub.1, R.sub.2, Y and Z independently represent hydrogen, halogen, an alkyl group, or an aryl group; and n represents 0 to 4, are directly produced by adding an optically active alcohol, amine and/or metal salt thereof.
光活性三环化合物,例如,由以下公式表示的环戊二烯[b]苯并呋喃衍生物:##STR1## 其中,R.sub.1、R.sub.2、Y和Z独立代表氢、卤素、烷基或芳基;n代表0到4,可以通过添加光学活性的醇、胺和/或金属盐直接产生。