Journal of Heterocyclic Chemistry

1H??imidazo [4, 5??b] pyrazines. III. 2??Thiols and derivatives

YC Tong

Index: Tong, Y. C. Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 751 - 753

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Citation Number: 8

Abstract

The alkylation products of IIIa and b with chloro- acetone exhibited different characteristics. From IIIa, the thioacetone existed in its normal form, with spectral data as indicated. From IIIb, the same reaction gave a product that existed in the thioacetone form VII in solution (DMSO) only. When the ir was recorded in solid state (Nu- jol), no carbonyl absorption was observed. Instead a hydroxyl absorption was observed, indicating the ex- istence of a hemiketal.