Preparation of Benzylstannanes by Zinc-Mediated Coupling of Benzyl Bromides with Organotin Derivatives. Physicochemical Characterization and Crystal Structures
作者:Daniele Marton、Umberto Russo、Diego Stivanello、Giuseppe Tagliavini、Paolo Ganis、Giovanni Carlo Valle
DOI:10.1021/om9507742
日期:1996.3.19
via coupling reaction of benzyl bromide derivatives (C6H5CH2Br and XYC6H3CH2Br, X = H, Y = o-, m-, p-CH3, o-, m-, p-F, o-, m-Cl, and p-Br; X = o-F, Y = p-Br) with R3SnCl compounds (R = Et, Pr, Bu, and Ph) in THF/H2O (NH4Cl) medium mediated by zinc powder. Such coupling also occurs with (Bu3Sn)2O. Dibenzyldibutylstannane (15) is prepared by reaction of benzyl bromide with Bu2SnCl2 or (Bu2SnCl)2O, and
Benzyltrialkyl-(1 - 13)和benzyltriphenylstannanes(16 - 22)已经以一锅合成容易地制备经由耦合苄基溴衍生物的反应(C 6 H ^ 5 CH 2 Br和XYC 6 ħ 3 CH 2 BR,X = H,Y = o-,m-,p- CH 3,o-,m-,p- F,o-,m- Cl和p- Br; X = o- F,Y =p- Br)与锌粉介导的THF / H 2 O(NH 4 Cl)介质中的R 3 SnCl化合物(R = Et,Pr,Bu和Ph)。这种联接也会发生与(BU 3 Sn)的2 O. Dibenzyldibutylstannane(15)通过与苄基溴反应而制备卜2的SnCl 2或(卜2的SnCl)2 O,和(2-萘基甲基)三丁基锡烷(14)通过反应Bu 3 SnCl制备2-(溴甲基)萘。报告了所有化合物的13 C和119 Sn-NMR数据