Synthesis of 2-boryl-1,3-butadienes from tributylphosphine stabilized zirconacyclopropenes and alkynes

被引:14
作者
Botvinik, Alina [1 ]
Quntar, Abed Al Aziz [1 ,3 ]
Rubinstein, Avri [2 ]
Srebnik, Morris [1 ]
机构
[1] Hebrew Univ Jerusalem, Dept Med Chem & Nat Prod, IL-91120 Jerusalem, Israel
[2] Hebrew Univ Jerusalem, Dept Pharmaceut, IL-91120 Jerusalem, Israel
[3] Al Quds Univ, Dept Mat Engn, Fac Engn, Abu Dies, E Jerusalem, Israel
关键词
Boryl zirconacyclopropene; Phosphine; Alkyne insertion; Boryl-1,3-butadiene; DIELS-ALDER; CYCLOADDITION; COMPLEXES; BORON;
D O I
10.1016/j.jorganchem.2009.05.036
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Boryl zirconacyclopropenes stabilized with tributylphosphine react with alkynes (terminal and internal) to give predominately 2-boryl-1,3-butadienes, 5, in 40-81% isolated yields. Products 5 are accompanied by 1-boryl-1,3-butadienes in 8-30% when terminal alkynes are inserted. However, the use of an internal alkyne (3-hexyne) gave predominantly 6c. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:3349 / 3352
页数:4
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