high yields of novel borylenebisamidines, boryl-amidines and -guanidines and related compounds, (I), (II), (III), and (IV). These reactions are insertions into the B–X (X = Cl, Br, Ph, OMe, NEt2, or SBun) bond. The synthesis of (III) and (IV) shows that under more forcing conditions it is possible to effect the insertion of more than 1 mol. of a 1 : 2 dipole into the B–X bond. Aminoboration with amine
二
对甲苯基碳二
亚胺与许多
硼烷[BCl 3,BBr 3,MeOBCl 2,(MeO)2 BCl,o -C 6 H 4 O 2 B·SBu n,o -C 6 H 4 O 2反应B·NEt 2,(Et 2 N)2 BCl,PhBCl 2,PhB(OMe)2,PhB(NEt 2)SBu n,Ph 2 BCl,Ph 2 B·OMe,Ph 2 B·SBu n,Ph 2 B·NEt 2和Ph 3 B]的条件下,可高收率地合成新型的亚苄基双am,
硼烷基-and和-
胍以及相关的化合物,(I),(II),(III)和(IV) 。这些反应是插入到B–X键中(X = Cl,Br,Ph,OMe,NEt 2或SBu n)。(III)和(IV)的合成表明,在更强的条件下,可以进行大于1mol的插入。1:2偶极子进入B–X键。
氨基消除
氨基
硼化提供了通往1,3,5,2-三氮杂
硼烷(V)的途径。