Platinum(0)-catalyzed diboration of allenes with bis(pinacolato)diboron

被引：100

作者：

Ishiyama, T ^{[1
]}

Kitano, T ^{[1
]}

Miyaura, N ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 0608623, Japan

来源：

TETRAHEDRON LETTERS | 1998年 / 39卷 / 16期

关键词：

D O I：

10.1016/S0040-4039(98)00199-3

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Addition of bis(pinacolato)diboron [(Me4C2O2)B-B(O2C2Me4)] to various allenes was carried out in excellent yields in the presence of Pt(PPh3)(4) at 80 degrees C or Pt(dbn)(2)/(c-Hex)(3)P at 50 degrees C. The addition to internal double bond was predominant for monosubstituted allenes, whereas the terminal diboration products were regioselectively obtained when a sterically bulky phosphine ligand of (c-Hex)(3)P and 1,1-disubstituted allenes were used. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2357 / 2360

页数：4

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