16797-75-4Relevant academic research and scientific papers
Synthesis and reaction of α-dithiolactone
Shigetomi, Toshiyuki,Soejima, Hiroe,Nibu, Yoshinori,Shioji, Kosei,Okuma, Kentaro,Yokomori, Yoshinobu
, p. 7742 - 7748 (2006)
Treatment of di-tert-butylthioketene S-oxide (5a) with Lawesson reagent at room temperature resulted in the formation of 3,3-di-fert-butylthiirane-2-thione (4a) in high yield. The oxidation of 4 a with mCPBA (mCPBA = m-chloroperbenzioc acid) gave 3,3-di-ferf-butylthiirane-2-thione S-oxide (6) almost quantitatively. The reactions of 4 a with dimethyl acetyle nedicarboxylate (DMAD) and benzyne afforded dimethyl 2-(2,2,4,4-tetramethylpentan-3-ylidene)-1, 3-dithiole-4,5-dicarboxylate (13) and 2-(2,2,4,4-tetramethylpentan-3-ylidene) benzo[d] [1,3]-dithiole (15), respectively, in high yields, suggesting that 4 a is an excellent 1,3-dipole. The reaction of 4 a with ethylenebis(triphenylphosphine)platinum (16) gave dithiolato-platinum complex (22) in high yield. The structure of 22 was determined by X-ray crystallographic analysis.
3-Alkylidenethiagermiranes
Ando, Wataru,Tsumuraya, Takeshi
, p. 1467 - 1472 (2008/10/08)
Dimethyl- and diphenylgermylenes react with di-tert-butylthioketene to give 4-alkylidene-1,2,3-thiadigermetanes 2 and 4, the products of the insertion of germylenes into 3-alkylidenethiagermiranes. Dimesitylgermylene generated by the thermolysis of hexamesitylcyclotrigermane (12) at 80°C reacts with di-tert-butylthioketene to produce a stable 3-alkylidenethiagermirane, 13. Photolysis of 13 produces dimesitylgermylene and di-tert-butylthioketene via germathiocarbonyl ylide 17, which is intensely blue in color with a maximum band at 580 nm. 13 reacts with dimethylgermylene to yield the corresponding 4-alkylidene-1,2,3-thiadigermetane 22. Oxidation of 13 by m-chloroperbenzoic acid gives 3-alkylidene-1,2,4-oxathiagermetane S-oxide 23.
