1-Imino-1H, 3H-thiazolo [3, 4-a] benzimidazole. Reactions with electrophiles

RD Haugwitz, BV Maurer…

Index: Haugwitz,R.D. et al. Journal of Organic Chemistry, 1974 , vol. 39, # 10 p. 1359 - 1361

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Citation Number: 4

Abstract

J. Org. Chem., Vol. 39, No. 10, 1974 1359 ture of equimolecular amounts (10 mg) of 5 and 19 was heated in a sealed tube under Nz at 200" for 30 min. The lactone fraction was separated from unreacted starting material by tlc and analyzed by mass spectrometry. The mass spectrum showed four molecular ion peaks at m/e 167, 170, 181, and 184 (relative ratio: 47: 47: 4.7: 1.3) indicating the presence of the four lactones presented in Scheme V.