Reversible crotylstannation of carbonyl compounds. Crotylstannation ability of Bu3-nClnSnCH2CHCHCH3 (n = 0, 1, 2) compounds towards acetone and benzaldehyde and 13C NMR characterization
作者:Alessandro Gambaro、Daniele Marton、Valerio Peruzzo、Giuseppe Tagliavini
DOI:10.1016/s0022-328x(00)84584-2
日期:1981.1
synthesized by means of transalkoxylation between Bu3-nCInSn(OMe) compounds and threo/erithro-2,3,4-trimethyl-5-hexen-3-ol. Under the conditions used the elimination occurs stereospecifically and with complete allylic rearrangement. The ability of the organostannoxy compounds to yield crotyl butylchlorotins via elimination increases in the order, Bu3Sn—O—C < Bu2ClSn—O—C < BuCI2Sn—O—C. In the addition
巴豆锡烷基化反应:已发现是可逆的。化合物反式/顺式Bu 3- n Cl n SnCH 2 CH = CHCH 3(n = 0,1,2)是通过有机锡氧基化合物,Bu 3 - n Cl n Sn-OC(Me )的消除反应制备的。)(i-Pr)CH(Me)CH = CH2,它是通过Bu 3- n CI n Sn(OMe)化合物与苏/二甲苯基之间的烷氧基化反应合成的-2,3,4-三甲基-5-己烯-3-醇。在所使用的条件下,消除是立体定向的,并且具有完整的烯丙基重排。有机锡氧基化合物通过消除而产生巴豆基丁基氯锡的能力按以下顺序增加,即Bu 3 Sn-OC = <Bu 2 ClSn-OC = <BuCl 2 Sn-OC =。在加成反应中,反应性增加的顺序是Bu 3 SnCrot