The chemistry of borylstannanes: Oxidative addition to palladium species and its application to palladium-catalyzed borylstannation of alkynes

被引：119

作者：

Onozawa, S ^{[1
]}

Hatanaka, Y ^{[1
]}

Sakakura, T ^{[1
]}

Shimada, S ^{[1
]}

Tanaka, M ^{[1
]}

机构：

[1] NATL INST MAT & CHEM RES,TSUKUBA,IBARAKI 305,JAPAN

来源：

ORGANOMETALLICS | 1996年 / 15卷 / 26期

关键词：

D O I：

10.1021/om9607199

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

cis addition of the borylstannanes Me(3)SnB[NMe(CH2CH2)NMe] (1) and Me(3)SnB(NEt(2))(2) (4) across alkynes was efficiently catalyzed at room temperature or 80 degrees C by Pd(PPh(3))(4), Pd(dba)(2), Cl2Pd(PPh(3))(2), or Me(2)Pd[PMe(2)(CH2CH2)PMe(2)] to give (beta-stannylalkenyl)boranes in high yields. Treatments of 1 with Me(2)Pd[PMe(2)(CH2CH2)PMe(2)] and of 4 with cis-Me(2)Pd(PPh(2)Me)(2) gave [{MeN(CH2CH2)Men}B](Me(3)Sn)Pd[PMe(2) (CH2CH2)-PMe(2)] (5) and [(Et(2)N)(2)B](Me(3)Sn)Pd(PPh(2)Me)(2) (6), respectively, with the former characterized by X-ray analysis. Complex 5, when treated with 1-octyne, formed the corresponding (beta-stannyl-1-octen-1-yl)borane and could catalyze the addition reaction of 1 with 1-octyne.

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页码：5450 / 5452

页数：3

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