Dehydrogenative Diboration of Alkynes Catalyzed by Ir/CO/tBuNC System

被引：5

作者：

Lai, Qingheng ^{[1
]}

Ozerov, Oleg, V ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Chem, 3255 TAMU, College Stn, TX 77842 USA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2021年 / 931卷

基金：

美国国家科学基金会;

关键词：

Iridium; catalysis; alkynes; diboration; hydroboration; C-H BORYLATION; CROSS-COUPLING REACTION; TERMINAL ALKYNES; STEREOSELECTIVE-SYNTHESIS; HYDRIDE COMPLEXES; REACTIVITY; RHODIUM(I); MECHANISM; EFFICIENT; COPPER;

D O I：

10.1016/j.jorganchem.2020.121614

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Catalytic dehydrogenative diboration (DHDB) of alkyne with HBpin was achieved using [Ir(COD)Cl](2) and other related Ir precursors under CO atmosphere. The selectivity for DHDB over hydroboration was higher in less polar solvents and under higher CO pressure. It was further improved when catalytic amount of tBuNC was added to the reaction. It was possible to achieve DHDB of both terminal and internal alkynes with selectivity for DHDB of up to 9:1 under the best conditions. Some DHDB products were isolated on the preparative scale. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：7

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