Chemistry of N-cyanodithioimidocarbonic acid. II. Synthesis of 3-halo-1, 2, 4-thiadiazoles

LS Wittenbrook, GL Smith…

Index: Wittenbrook,L.S. et al. Journal of Organic Chemistry, 1973 , vol. 38, # 3 p. 465 - 471

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Citation Number: 18

Abstract

Rccausc of thoir hygroscopic naturc, the monoesters wcre difficult to obtain in an analytically pure state. I0 Thus, in many cases spectral data and subscyucnt characterization of tho cyclizcd products wcrc relied upon for structuro proofs. The infrared spectra wcrc particularly instructive, since 2 cxhibits a st'rong band at 1322 cm-l (C= N strctch) which shifts to 1340- 1380 cm-I in thc monocstcrs." Tho disposition of 2 to undcrgo stcpwisc alkylation1*