Beiträge zur Chemie des Bors, 226: Funktionalisierung von Alkinylboranen-Umsetzung mit Nucleophilen
作者:Herta Feulner、Nils Metzler、Heinrich Nöth
DOI:10.1016/0022-328x(94)05147-4
日期:1995.3
The synthesis of alkynylboranes RR′BCCR″ 1–3 and their reactions with various nucleophiles are described (R, R′ = Me2N, Cl, alkyl; R″ = Me, Ph). Although these compounds can be looked upon as inorganic Michael systems, nucleophiles such as alcohols, amines, amides and various carbon nucleophiles attack exclusively at the boron atom (analogous to a 1,2 attack). Thus, a convenient means of functionalization
描述了炔基硼烷RR'BCCR” 1-3的合成及其与各种亲核试剂的反应(R,R'= Me 2 N,Cl,烷基; R” = Me,Ph)。尽管可以将这些化合物视为无机迈克尔系统,但亲核试剂(例如醇,胺,酰胺和各种碳亲核试剂)仅会攻击硼原子(类似于1,2攻击)。因此,描述了在硼原子处炔基硼烷官能化并保留BCC部分的简便方法,并描述了具有R,R'= Me 2 N,N(H)i Pr,pyr,O i Pr的炔基硼烷。中,Me,MES,CCSiMe 3以良好的收率获得和表征通过光谱方法。(Me的反应途径2 N)2 B )CCPh与碳亲核试剂对三(烷基)硼烷的阐明。讨论了对炔基硼烷的电子性质和化学反应性的影响。