METHOD FOR THE PREPARATION OF CRYSTALLINE TETRAHYDROBENZOTHIEPINES
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(2008/06/13)
Method for the preparation of tetrahydrobenzothiepines
Among its several embodiments, the present invention provides an improved process for the preparation of tetrahydrobenzothiepine-1,1-dioxide compounds; the provision of a process for preparing a diastereomeric mixture of tetrahydrobenzothiepine-1,1-dioxide compounds from a single diastereomer of such compounds; the provision of a process for the preparation of 3-bromo-2-substituted propionaldehyde compounds; and the provision of a process for the preparation of 3-thio-2-substituted propionaldehyde compounds.