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A General Approach to the Synthesis of 4,7- Disubstituted Cephams
Published: 01 November 1998 by MDPI in The 2nd International Electronic Conference on Synthetic Organic Chemistry session General Organic Synthesis
Abstract: A general approach to the synthesis of 4,7-disubstituted cephams is described starting from a,bunsaturated aldehydes or ketones via 4-functionally substituted tetrahydro-1,3-thiazine-2-thiones.
Keywords: a,b-Unsaturated aldehydes or ketones, dithiocarbamic acid, 4-hydroxy- and 4-alkoxytetrahydro- 1,3-thiazine-2-thiones, 4-functionally substituted tetrahydro-1,3-thiazine-2-thiones, 4-alkoxy-2-methylthio- 5,6-dihydro-4H-1,3-thiazines, 4,7-disubstituted cephams