5533-26-6Relevant academic research and scientific papers
Hydrothiolation of unactivated alkynes catalyzed by indium(III) bromide
Yadav,Reddy, B. V. Subba,Raju,Ravindar,Baishya, Gakul
, p. 1474 - 1475 (2008/03/14)
Indium(III) bromide is found to catalyze efficiently the hydrothiolation of unactivated alkynes with various thiols under mild conditions to produce the corresponding dithioacetals in excellent yields. However, addition of aromatic thiols on aromatic alky
Nucleophilic α-addition to β-nitroacrylates: application to the synthesis of α-thioacrylates
Lewandowska, Elzbieta
, p. 4879 - 4883 (2007/10/03)
The α-addition of alkyl or aryl thionucleophiles to β-nitro-α,β-unsaturated alkenoates in THF in the presence of TEA or DBU gave access to the α-thio-α,β-unsaturated alkenoates. The reaction occurred via formation of β-nitro-α-thioalkanoates and concomitant elimination of nitrous acid from the α-adducts.
1,2-Thio group migration in Rh(II) carbene reactions
Xu, Feng,Shi, Weifeng,Wang, Jianbo
, p. 4191 - 4194 (2007/10/03)
A series of β-thio group substituted α-diazo carbonyl compounds have been prepared by nucleophilic substitution reactions of thiophenol, thionaphthol, or benzyl mercaptan with β-acetoxy-α-diazo carbonyl compounds. The diazo decomposition of these diazo ca
Microwave-assisted tandem nucleophilic substitution-Wittig reaction of α-hypervalent iodine functionalized phosphonium ylide
Yu, Xiaochun,Huang, Xian
, p. 1895 - 1897 (2007/10/03)
Under microwave irradiation conditions the tandem nucleophilic substitution-Wittig reaction of α-hypervalent iodine functionalized phosphonium ylide can occur readily to afford α-heteroatom substituted-α,β-unsaturated enoates in good yields stereo-selecti
Reaction of 1-Lithio-1-arylthio(or alkylthio)methyltrimethylsilane with Acid Derivatives. A Novel Synthesis of Functionalized Vinyl Sulfides
Agawa, Toshio,Ishikawa, Minori,Komatsu, Mitsuo,Ohshiro, Yoshiki
, p. 1205 - 1208 (2007/10/02)
Reactions of 1-lithio-1-phenylthiomethyl- (1a) and 1-lithio-1-methylthiomethyltrimethylsilane (1b) with amides, an ester, acid anhydrides, a urea, and a carbonate are described which provide useful routes to functionalized vinyl sulfides.The reaction of 1 with amides gave β-functionalized vinyl sulfides, 1-dialkylamino-2-phenylthio (or methylthio)ethylenes, in 40-95percent yields and the reaction could be extended to the sulfonyl derivatives of 1 to afford 1-dialkylamino-2-phenylsulfonyl(or methylsulfonyl)ethylenes.Although ethyl benzoate and some acid anhydrides were not good substrates for this reaction, tetramethylurea and diethyl carbonate gave α-functionalized vinyl sulfides, 1-amidovinyl- and 1-(ethoxycarbonyl)vinyl sulfides, in moderate yields when treated with 1a followed by addition of benzaldehyde.
Regiochemical Control of the Addition of Aryl Selenols and Aryl Thiols to the Triple Bond of Arylpropiolates. Synthesis of Seleno- and Thioflavones and Seleno- and Thioaurones
Wadsworth, Donald H.,Detty, Michael R.
, p. 4611 - 4615 (2007/10/02)
Addition of aryl selenols and aryl thiols to arylpropiolates under basic conditions followed by saponification gave exclusively β-substituted cinnamates of predominant Z sterochemistry.Neat solutions of aryl selenols or aryl thiols and arylpropiolates aft
