SYNTHESIS OF SOME NEW SPIROHETEROCYCLES RELATED TO SPIRO [INDOLINE-3, 2′-[1, 3] OXATHIALANE]-2, 5′-DIONE

MS Al-Thebeiti, MF El-Zohry

Index: Al-Thebeiti, Marzoog S.; El-Zohry. Maher F. Phosphorus, Sulfur and Silicon and the Related Elements, 1994 , vol. 88, # 1-4 p. 251 - 256

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Citation Number: 10

Abstract

Abstract The reaction of indole-2, 3-dione (1a) and/or 1-methylindole-2, 3-dione (1b) with mercaptoacetic acid in the presence of 4-toluenesulfonic acid as a catalyst afforded spiro [indoline-3, 2′-[1, 3] oxathialane]-2, 5′-diones (2a, b). Compounds 2a and/or 2b were reacted with the appropriate aliphatic and/or aromatic primary amines to give compounds 3a- j. The reaction of 2a, b with hydrazine hydrate, phenylhydrazine and p- ...