42967-76-0Relevant articles and documents
Se-Aryl Alkane- or Arenecarboselenothioates: Synthesis and Some Reactions
Kato, Shinzi,Yasui, Eiji,Terashima, Kiyomitsu,Ishihara, Hideharu,Murai, Toshiaki
, p. 3931 - 3942 (2007/10/02)
A series of Se-aryl carboselenothioates 3 (RCSSeAr, R=alkyl, aryl) were synthesized and characterized from the reaction of bis(thioacyl) sulfides 1 with sodium areneselenolates.The thionselenolesters 3 are stable (liquid or crystals) both thermally and to moisture.Reactions of 3 with aliphatic primary and secondary amines gave the corresponding ammonium carbodithioates 8 together with diphenyl diselenide 7.In contrast, treatment with aromatic amines or sodium alcoholates afforded the corresponding thioamides or O-alkyl or O-aryl thionoesters in good yields.The oxidation of 3 with m-chloroperbenzoic acid gave the corresponding sulfides 12 and acyl arylseleno sulfides 13 which are formed by a rearrangement of the ArSe group to the thiocarbonyl sulfur atom.
Preparation and Some Reactions of Selenium and Tellurium Bis(dithiocarboxylates)
Kato, Shinzi,Itoh, Yuhji,Ohta, Yasuyuki,Goto, Kunio,Kimura, Masahiro,et al.
, p. 1696 - 1708 (2007/10/02)
A number of selenium- 2 and tellurium bis(dithiocarboxylates) 3 have been prepared by the reaction of piperidinium or sodium dithiocarboxylates 1 with sodium seleno- and telluropentathionates.The orange or red products are stable towards heat and moisture
Preparation and Characterization of Bis(thioacyl) Tri- and Tetrasulfides
Kato, Shinzi,Nishiwaki, Masataka,Inagaki, Satoshi,Ohshima, Shigeru,Ohno, Yoshitaka,et al.
, p. 1684 - 1695 (2007/10/02)
Bis(thioacyl) tri- 1 and tetrasulfides 2 have been prepared by the reaction of dithiocarboxylic acids with sulfur- or disulfur dichloride.The crystalline aromatic bis(thioacyl) sulfides (1, 2, R = aromatic) are stable towards heat and moisture.The n->?su
Preparation and Some Reactions of Thioacyl Diphenylthiophosphinoyl and Thioacyl Diphenylphosphino Sulfides
Kato, Shinzi,Goto, Masahisa,Hattori, Rikizoh,Nishiwaki, Koh-ichi,Mizuta, Masateru,Ishida, Masaru
, p. 1668 - 1683 (2007/10/02)
The reaction of sodium or caesium dithiocarboxylates with diphenylthiophosphinic and diphenylselenophosphinic chlorides gives purple thioacyl diphenylthiophosphinoyl 5 and dark green thioacyl diphenylselenophosphinoyl sulfides 6, which are useful thioacylating reagents under mild reaction conditions.Thioacyl diphenylphosphino sulfides 22, which can be obtained by the similar method using diphenylphosphinous chlorides, react with methanol to yield the corresponding methyl dithiocarboxylates 15, while the reactions of 22 with N-chlorosuccinimide lead to hitherto unknown N-(thioacetylthio)succinimides 28.
Preparation and Some Reactions of Bis(thioacyl) Sulfides
Kato, Shinzi,Shibahashi, Hiroshi,Katada, Tomonori,Takagi, Takashi,Noda, Ippei,et al.
, p. 1229 - 1244 (2007/10/02)
Reaction of dithioic acids with dicyclohexylcarbodiimide has been found to give the corresponding bis(thioacyl) sulfides 1 in good yield, which are very useful thioacylating reagents under mild reaction conditions.Most of the aromatic thioanhydrides (1, R = aromatic) are fairly stable green crystals at room temperature, but the aliphatic ones (1, R = aliphatic) are unstable purple oils which dimerize at room temperature to give the dithietanes 5.The reactions with nucleophiles are discussed.
The Preparation and Some Reactions of Unsymmetrical Acyl Thioacyl Sulfides
Kato, Shinzi,Sugino, Katsumi,Matsuzawa, Yukihiko,Katada, Tomonori,Noda, Ippei,et al.
, p. 1798 - 1811 (2007/10/02)
A number of unsymmetrical acyl thioacyl sulfides have been prepared and characterized by the reaction of piperidinium or sodium dithiocarboxylates with acyl chlorides or by desulfurization reaction of acyl thioacyl disulfides with triphenylphosphine.They are deep blue oils or light green crystals and very unstable thermally and for moisture.The n --> ?* transitions of the thiocarbonyl group of 1 appear in higher wave length region than those of the corresponding symmetrical bis(thioacyl) sulfides .Some reactions with nucleophiles are discussed.It was found that the symmetricallization reaction of these unsymmetrical acyl thioacyl sulfides occurs in the presence of base such as lithium ethanethiolate to give the symmetrical bis(thioacyl) disulfides in fair yield.