Metathetical reactions of P-lithio salts of sterically crowded primary stannylphosphines tBu3SnPH2 and tBu2Sn(PH2)2 with organochlorosilanes and -stannanes were investigated. Reactions of tBu3SnPHL (I) with dichlorides R2ECl2 or (R2CnCl)2PH yield the secondary stannylphosphines (tBu3SnPH)2ER2 (III:ESi, RMe; IV: ESn, RtBu) and (tBu3SnPHSntBu2)2PH (V), respectively. In the corresponding reaction
研究了空间拥挤的一级
苯乙烯膦t Bu 3 SnPH 2和t Bu 2 Sn(PH 2)2的P-
硫代盐与有机
氯硅烷和-
锡烷的易位反应。的反应吨卜3 SnPHL(我)与二
氯- [R 2根据
EC1 2或(R 2 CNCL)2 PH得到次级stannylphosphines(吨卜3 SnPH)2 ER 2(III:ESi,RMe; IV:电子nSn,Rt Bu)和(t Bu 3 SnPHSn t Bu 2)2 PH(V)。在I与Me 2 SnCl 2的相应反应中,通过t Bu 3 SnPH 2的缩合形成环状
叔丁基膦(Me 2 SnPSn t Bu 3)2(VI)。
氯代
锡烷或-
硅烷与二
硫代化合物t Bu 2的盐反应中也发生环缩合反应生成叔
苯乙烯基膦Sn(PHLi)2(II)。在Me 3 SnCl中,P,P'-双(
锡烷基)-取代基。获得二
磷腺
锡烷(t Bu 2 SnPSnMe 3)2(VII)。Me