Chelation-control in nucleophilic addition to Cr(CO)3-complexed aryl aldehydes.
نویسندگان
چکیده
One or more methoxy groups on the benzylic carbon at the ortho-position of tricarbonylchromium-complexed aryl aldehydes (2, 3 or 4) permit chelation-controlled addition of nucleophiles to the carbonyl function in the presence of Lewis acids. In the absence of a Lewis acid additive, a complementary set of diastereomeric products are obtained.
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ورودعنوان ژورنال:
- Organic & biomolecular chemistry
دوره 1 10 شماره
صفحات -
تاریخ انتشار 2003