Glucosinolate chemistry. First synthesis of glucosinolates bearing an external thio-function
作者:M Mavratzotis、V Dourtoglou、C Lorin、P Rollin
DOI:10.1016/0040-4039(96)01214-2
日期:1996.8
A general strategy was developed to synthesize ω-methylthioalkyl glucosinolates through a coupling reaction between 1-thio-β-D-glucopyranose and a hydroximoyl halide obtained from the corresponding nitroalkyl methylsulfide precursor.
Synthese von α-Halogen-ω-alkylthio-alkanen und α,ω-Bisalkylthio-alkanen
作者:Elke Anklam
DOI:10.1055/s-1987-28097
日期:——
Synthesis of α-Halogeno-Ï-alkylthioalkanes and α,Ï-Bisalkylthioalkanes The reaction of α,Ï-dihalogenated alkanes [X(CH2)nX,,n = 3 - 10]with alkylthiolates affords α-halogeno-Ï-alkylthioalkanes 1 as well as α,Ï-bisalkylthioalkanes 2. Products 1 (40 examples) and 2 (22 examples) are easily isolated in good yields by flash chromatography.
Nickel-Catalyzed Negishi-Type Arylation of Trialkylsulfonium Salts
作者:Hideki Yorimitsu、Hiroko Minami、Keisuke Nogi
DOI:10.1055/s-0040-1707817
日期:2021.9
Negishi-type arylation of trialkylsulfonium salts with arylzinc reagents has been accomplished under nickel catalysis. The use of cyclohexanethiol as an additional ligand was found to be particularly important to promote C–S cleavage. The present reaction accommodates one-pot arylation of dialkylsulfides by combining with S-methylation with MeOTf. Mechanistic experiments suggest that C–S cleavage
A general pathway was devised to synthesize ω-methylsulfanylalkyl glucosinolates, which represent an important class of structurally homogeneous plant secondary metabolites. The required thiofunctionalized hydroximoyl chlorides were obtained from the corresponding α,ω-nitroalkyl methylsulfide precursors, involving as the key-step, a nitronate chlorination strategy. A coupling reaction with 1-thio-