📜4-Tert-Butylphenyl 3-Oxobutanoate置于硫酸体系中,化学反应 24.0H,以48%的收率获得4-甲基-6-叔丁基香豆素
参考文献:Preparation Of Newtert-Butyl Substituted Coumarins,Thiocoumarins And Dithiocoumarins
标题:Preparation Of Newtert-Butyl Substituted Coumarins,Thiocoumarins And Dithiocoumarins
摘要:6-Tert-Butyl-4-Methyl-And 6,8-Di-Tert-Butyl-4-Methylcoumarin Were Prepared From Tert-Butylphenols And Diketene Via The Corresponding Aryl Acetoacetates. 6-Tertbutyl-4-Methyl-Thiocoumarin (6) Was Obtained From 6-Tert-Butylthiophenol. Thionation With Lawesson'S Or Davy'S Reagent Led To The Related Thion-And Dithiocoumarins. The Structures Were Proved By NMR Spectroscopy And An X-Ray Structure Analysis Of 6.
Doi:10.1080/10426500701340949