cheminform abstract: new synthetic route to 1,2,4-thiadiazolines and 1,3-thiazolines via...

1997 thiadiazole derivatives thiadiazole derivatives R 0300 17 - 114 New Synthetic Route to 1,2,4-Thiadiazolines and 1,3-Thiazolines via Thiadiazolopyridinium Salts. — The base-promoted reaction of chlorides (I) with nitriles provides an eﬃcient synthesis of the 1,2,4-thiadiazolines (III). A similar condensation with acetone yields the thiazolines (V) and the dimers ( VI) as side products. — (MARTINEZ, A.; CASTRO, A.; FONSECA, I.; MARTINEZ-RIPOLL, M.; CANO, F. H.; ALBERT, A.; Heterocycles 43 (1996) 12, 2657-2666; Inst. Quim. Med., CSIC, E-28006 Madrid, Spain; EN) 1

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Page 1: ChemInform Abstract: New Synthetic Route to 1,2,4-Thiadiazolines and 1,3-Thiazolines via Thiadiazolopyridinium Salts

1997 thiadiazole derivatives

thiadiazole derivativesR 0300

17 - 114New Synthetic Route to 1,2,4-Thiadiazolines and 1,3-Thiazolines viaThiadiazolopyridinium Salts. — The base-promoted reaction of chlorides(I) with nitriles provides an efficient synthesis of the 1,2,4-thiadiazolines (III).A similar condensation with acetone yields the thiazolines (V) and the dimers( VI) as side products. — (MARTINEZ, A.; CASTRO, A.; FONSECA, I.;MARTINEZ-RIPOLL, M.; CANO, F. H.; ALBERT, A.; Heterocycles 43 (1996)12, 2657-2666; Inst. Quim. Med., CSIC, E-28006 Madrid, Spain; EN)

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