20929-40-2Relevant articles and documents
Preparation of alkylated compounds using the trialkylphosphate
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Paragraph 0217; 0227, (2021/11/02)
[Problem] trialkylphosphate strong base used reaction agent, a carboxylic acid, a ketone, an aldehyde, amine, amide, thiol, ester or Grignard reagent to a variety of substrates, and/or high efficiency to generate a highly stereoselective alkylation reaction, the alkylated compounds capable of producing new means. [Solution] was used as the alkylating agent in the alkylation of compound trialkylphosphate, strongly basic reaction production use. [Drawing] no
Palladium-Catalyzed Hydrocarbonylative C-N Coupling of Alkenes with Amides
Zhou, Xibing,Zhang, Guoying,Gao, Bao,Huang, Hanmin
supporting information, p. 2208 - 2212 (2018/04/30)
An efficient palladium-catalyzed hydrocarbonylative C-N coupling of alkenes with amides has been developed. The reaction was performed via hydrocarbonylation of alkenes, followed by acyl metathesis with amides. Both intermolecular and intramolecular react
Radical Cyclizations of Alkenyl-Substituted 4,5-Dihydro-1,3-thiazole-5-thiols
Jenny, Christjohannes von,Wipf, Peter,Heimgartner, Heinz
, p. 838 - 846 (2007/10/02)
Heating of 5-alkenyl- or 5-alkinyl-4,5-dihydro-1,3-thiazole-5-thiols of type 5 in the presence of a radical initiator gave dithiaspirobicycles in fair-to-excellent yield (Scheme 3).Under analogous conditions, the 4,5-dihydro-4-vinyl-1,3-thiazole-5-thiol 5d underwent a cyclization to give the annellated dithiabicycle 7 (Scheme 4).In this reaction, a minor product 8 was formed by an unknown reaction mechanism.The structure of 8 was established by X-ray crystallography.The starting 1,3-thiazole-5-thiols 5 have been synthesized by carbophilic alkylation of the C=S group of 1,3-thiazole-5(4H)-thiones with Grignard-reagents or alkylcuprates.The thiazolethiones were obtained by the reaction of 3-amino-2H-azirines with thiobenzoic acid followed by sulfurization and cyclization.The 4-benzyl derivative 1b was thermally rearranged via 1,3-benzyl migration to yield the benzyl (1,3-thiazol-5-yl) sulfide 11 (Scheme 5).