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参考文献:Synthesis Of Cl2-To Cl4-Diphenylsulfides And Cl1-To Cl3-Dibenzothiophenes
标题:Synthesis Of Cl2-To Cl4-Diphenylsulfides And Cl1-To Cl3-Dibenzothiophenes
摘要:The Synthesis Of Eleven Environmentally Relevant Mono-,Di-And Trichlorodibenzothiophenes (2) By Photochemical Ring-Closure Of Polychlorodiphenylsulfides (1) Is Described. Ail Monochlorodibenzothiophenes Were Additionally Synthesized Starting With A Chlorothiophenol In A Three-Step Reaction Adapted From The Synthesis Of Methyldibenzothiophenes. (C) 1999 Elsevier Science Ltd All Rights Reserved.
Doi:10.1016/s0045-6535(98)00582-7
专利信息
专利号:US-4046763-A
优先权日:1968-11-08
标题:2,3-Diphenyl-5-ethylpyrazine
发明人:SCHWARTZ NORMAN; MOHRBACHER RICHARD J
权利人:MCNEILAB INC
摘要:The compound 2,3-diphenyl-5-ethyl-pyrazine, useful as a precursor in the synthesis of those compounds of the class of pyrazine, arylpyrazine, diphenylpyrazine, and cycloalkylpyrazine malonates, acetates, acetamides, and acetic acids, useful for their ultraviolet light absorption properties.