在硫代羰基化合物的存在下,对1,3,4-氧杂噻唑-2-酮3的热解反应可得到中等程度的中等收率的鲜为人知的5 H -1,4,2-二噻唑1,该反应可成功地与二芳基,芳基烷基和二烷基酮,以及硫代酸酯,但不能与二硫代酯和叔硫代酰胺结合使用。讨论了取代基的影响。5-乙氧基-5 H -1,4,2-二噻唑类化合物,由硫代酸酯衍生,与高氯酸在乙酸酐中溶剂化,可高产率生成3,5-二芳基-1,4,2-二噻唑鎓盐9。
Preparation of 5H-1,4,2-dithiazoles via 1,3-dipolar cycloadditions of nitrile sulphides to thiocarbonyl compounds; the first synthesis of a 3,5-diaryl-1,4,2-dithiazolium salt
作者:Kwok-Fai Wai、Michael P. Sammes
DOI:10.1039/c39880000852
日期:——
Nitrilesulphides from the thermal decomposition of 1,3,4-oxathiazol-2-ones add to thiocarbonyl compounds giving moderate to high yields of 5H-1,4,2-dithiazoles; an adduct from O-ethyl thiobenzoate has been converted into 3-(4-nitrophenyl)-5-phenyl-1,4,2-dithiazolium tetrafluoroborate.
来自1,3,4-恶噻唑-2-酮的热分解的腈腈加到硫代羰基化合物中,产生中等至高产率的5 H -1,4,2-二噻唑;来自硫代苯甲酸O-乙酯的加合物已转化为四氟硼酸3-(4-硝基苯基)-5-苯基-1,4,2-二噻唑鎓。
WAI, KWOK-FAI;SAMMES, MICHAEL P., J. CHEM. SOC. PERKIN TRANS. PT 1,(1991) N, C. 183-187
作者:WAI, KWOK-FAI、SAMMES, MICHAEL P.
DOI:——
日期:——
WAI, KWOK-FAI;SAMMES, MICHAEL P., J. CHEM. SOC. CHEM. COMMUN.,(1988) N 13, 852-853