At 40oC, 1,4-addition is preferredAt _中国高校课件下载中心

点击下载：《有机化学》课程PPT教学课件（Organic Chemistry, William A. Price, Ph.D. PPT, La Salle University, L.G.WADE, JR., 8th Edition）Conjugated Dienes and U.V. Spectroscopy

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At 40C,1,4-addition is preferred Br H2C=CHCH=CH2+HBr→ H2C=CHCHCHs CHsCH=CHCH2Br 1,2 adduct 1,4 adduct At 0C: 71% 29% At40°C: 15% 85% C2004 Thomson-Brooks/Cole At 40oC, 1,4-addition is preferred

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点击下载：《有机化学》课程PPT教学课件（Organic Chemistry, William A. Price, Ph.D. PPT, La Salle University, L.G.WADE, JR., 8th Edition）Conjugated Dienes and U.V. Spectroscopy