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A DIRECT ROUTE TO ORTHO-HYDROXY PHENYL DITHIOPHOSPHINIC ACIDS |
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| Authors: | Tilman Krauch Bernd Schweizer |
| Institution: | Institut for Organic Chemistry, ETH Zürich , Universitatsstrasse 16, CH-8092, Zürich, Switzerland |
| Abstract: | Abstract Through a direct and selective deprotection of 1 (R=methyl) with boron tribromide substituted o-hydroxy-dithiophosphinic acid 1 was prepared under mild conditions in excellent yield. |
| Keywords: | Oxazaphospholane conformation structure X-ray crystal ephedrine pseudoephedrine |