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郑铭金虫 (正式写手)
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求助文献一篇 Cho,C.S.; Itotani, K.; Uemura, S. J. Organomet. Chem. 1993,443,253 邮箱：zheng334708@yahoo.com.cn [ Last edited by 郑铭 on 2009-3-21 at 19:45 ] |
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Sodium tetraphenylborate as a phenylating reagent in the palladium-catalyzed phenylation of alkenes and acid chlorides chan Sik Cho, Koichi Itotani and Sakae Uemura Abstract Sodium tetraphenylborate (NaBPh4) reacts with terminal alkenes in acetic acid at 25°C in the presence of a catalytic amount of palladium(II) acetate together with silver acetate as a re-oxidant to give the corresponding phenylated alkenes in 22–87% yield. It also reacts with acid chlorides in tetrahydrofuran (THF) at 25°C in the presence of a catalytic amount of tetrakis(triphenylphosphine)palladium(0) to give the corresponding phenyl ketones in 51–100% yield. Carbonylation of the borate with 1–30 atm carbon monoxide (CO) in methanol at 25°C in the presence of palladium(II) acetate or sodium chloropalladate (Na2PdCl4) affords a low yield (9–30%) of benzophenone and methyl benzoate, a higher pressure favoring the formation of the latter. Journal of Organometallic Chemistry Volume 443, Issue 2, 26 January 1993, Pages 253-259 搞不定呀，很想帮你的 |
6楼2009-03-22 10:47:28