71778-39-7Relevant articles and documents
Stereoselective additions of chiral (E)-crotylsilanes to thionium ions: Asymmetric synthesis of homoallylic thioethers
Liu, Ping,Binnun, Eva D.,Schaus, Jennifer V.,Valentino, Nicole M.,Panek, James S.
, p. 1705 - 1707 (2007/10/03)
Stereochemically well-defined homoallylic thioethers 3 are synthesized via Lewis acid promoted condensation reaction between chiral organosilane reagents 2 and in situ generated thionium ions. The stereochemical course of the reaction is consistent with earlier reports concerning crotylsilations of oxonium ions.
Lithium bromide, a novel and highly effective catalyst for monothioacetalization of acetals under mild reaction conditions
Ono,Negoro,Sato
, p. 1581 - 1583 (2007/10/03)
Lithium bromide is efficient as a catalyst for the monothioacetalization of acetals under mild reaction conditions to provide products in excellent yields with high chemoselectivity.
DIRECT CONVERSION OF CARBOXYLIC ACIDS AND CARBOXYLIC ESTERS INTO S,S'-DIPHENYL ACETALS AND PHENYL SULFIDES WITH THEXYLPHENYLTHIOBORANE
Kim, Sunggak,Kim, Sung Soo
, p. 1913 - 1916 (2007/10/02)
Reaction of carboxylic acids with thexylphenylthioborane in methylene chloride at room temperature gives S,S-diphenyl acetals in high yields and carboxylic esters are converted into phenyl sulfides in the presence of zinc iodide under similar conditions.
Synthesis of Alkenes via Peterson Reaction
Ager, David J.
, p. 183 - 194 (2007/10/02)
The α-phenylthiosilanes (2) have been used to prepare the α-silyl anions (1) by reaction with lithium naphthalenide; subsequent condensation with a carbonyl compound gave the alkene (8) via the Peterson reaction.The α-phenylthiosilanes (2) were prepared from n,n-bis(phenylthio)acetals (4) by reaction with lithium naphthalenide and chlorotrimethylsilane.The n,n-bis(phenylthio)acetals (4) were obtained, in turn, from 1,1-bis(phenylthio)acetals (5) by anion formation with butyl-lithium-N,N,N',N'-tetramethylethylenediamine complex in hexane followed by reaction with an alkyl halide.The Peterson reaction was also used to prepare vinyl sulphides (9) and vinyl sulphones (13).