专利号:WO-2021038581-A1 优先权日:2019-08-30 标题 :A one step synthesis of 2-substituted benzo[b]thiophenes 发明人:SEKAR GOVINDASAMY; POONGUZHALI ELAMVAZHUTHI 权利人:INDIAN INST TECH MADRAS 摘要:The invention pertains to a one step synthesis of 2-substituted benzo[ b ]thiophene of general formula wherein the synthesis of 2-substituted benzo[ b ]thiophenes is by reacting the starting materials substituted or unsubstituted 2-halogenobenzaldehyde and substituted or unsubstituted acetyl/phenacyl bromide with a catalyst, a sulphur source and phase transfer catalyst in an aqueous medium with atmospheric air and at temperature in the range of 25°C-30°C.
专利号:US-9796653-B2 优先权日:2015-12-21 标题 :Methods of preparing α,β-unsaturated or α-halo ketones and aldehydes 发明人:BAXENDALE IAN R; SHARLEY JAMES S; Miranda Amadeo Fernández; PÉREZ ANA MARIA COLLADO 权利人:INT FLAVORS & FRAGRANCES INC 摘要:Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of α,β-unsaturated or α-bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile α,β-unsaturated or α-bromo ketones or aldehydes in large scales to avoid using precious metal compounds.
专利号:EP-0931786-B1 优先权日:1995-09-01 标 题:Synthesis and use of retinoid compounds having negative hormone and/or antagonist activities
专利号:WO-9709297-A2 优先权日:1995-09-01 标 题:Synthesis and use of retinoid compounds having negative hormone and/or antagonist activities
专利号:EP-0931786-A2 优先权日:1995-09-01 标 题 :Synthesis and use of retinoid compounds having negative hormone and/or antagonist activities
参考标题:Synthesis Of 2-Aminothiazoles From Styrene Derivatives Mediated By 1,3-Dibromo-5,5-Dimethylhydrantoin (Dbh) 作者:Chunhua Ma,Yuqi Miao,Minghao Zhao,Ping Wu,Jianglu Zhou,Zhi Li,Xilei Xie,Wei Zhang |发布日期:2018.7 摘要:An Efficient Procedure For The Synthesis Of 2-Aminothiazoles Via Dbh-Mediated Oxidative Cyclization Of Styrenes And Thioureas Is Reported. Various Alkenes Were Successfully Transformed To The Corresponding 2-Aminothiazoles In Yields Of 10-81% Via A Two-Step One-Pot Manner Using Dbh As Both The Bromine Source And Oxidant. The Method Can Be Readily Carried Out In Gram-Scale And Successfully Applied To
合成参考文献
摘要:Grüschow, S.; Smith, D. R. M.; Gkotsi, D. S.; Goss, R. J. M., Science of Synthesis: Biocatalysis in Organic Synthesis, (2015) 3, 316. 摘要:Xie, J.-H.; Zhou, Q.-L., Science of Synthesis, (2022) , 414.