Flash vacuum pyrolysis of 1,3-thiazole-5(4H)-thiones

• Autorzy: Leśniak S. , Mlostoń G. , Heimgartner H.
• Języki publikacji: EN

Abstrakty

EN

Flash vacuum pyrolysis of 2-phenyl-1,3-oxazol-5(4H)-one (5) at 600degree C/1.5x10(-3) torr proceeded via CO2-elimination to give 3-phenyl-2H-azirine (6) as the only detectable product which was isolated in 34% yield. Under similar conditions, 4,4-dimethyl-1,3-thiazole-5(4H)-thiones 7a and 7b yielded isomeric 1,4,2-dithiazole derivatives 8a,b as main products. Desulfurization leads to 2-(2-propylidene)-1,3-thiazetes 9 as minor products, and in the case of 7a, disulfide 10a is formed as a second minor product.

Słowa kluczowe

EN

Flash vacuum pyrolysis; fragmentation; rearrangement; 1,3-thiazole-5(4H)-thiones

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 1998
• Tom: Vol. 72, nr 8
• Strony: 1915--1920
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Leśniak S.

autor

Mlostoń G.

autor

Heimgartner H.

• Department of Organic and Applied Chemistry University of Łódź Narutowicza 68 90-136 Łódź Poland