Cobalt-catalyzed regioselective [3+2] annulation of ortho-formyl and acetyl substituted phenylboronic acids with alkynes

Mitsuhiro Ueda; Tamami Ueno; Yuki Suyama; Ilhyong Ryu

doi:10.1016/j.tetlet.2017.06.049

Cobalt-catalyzed regioselective [3+2] annulation of ortho-formyl and acetyl substituted phenylboronic acids with alkynes

Mitsuhiro Ueda^*, Tamami Ueno, Yuki Suyama, Ilhyong Ryu

^*Corresponding author for this work

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Treatment of alkynes with ortho-formyl and acetyl phenylboronic acids in the presence of a cobalt catalyst resulted in the formation of 2,3-disubstituted indenols in good yields. When aryl silyl alkynes were used, 2-aryl-3-silyl indenols were obtained regioselectively in good yields.

Original language	English
Pages (from-to)	2972-2974
Number of pages	3
Journal	Tetrahedron Letters
Volume	58
Issue number	30
DOIs	https://doi.org/10.1016/j.tetlet.2017.06.049
State	Published - 26 Jul 2017

Keywords

2,3-Disubstituted indenol
Cobalt
ortho-Carbonylated phenylboronic acid
Silyl aryl alkyne
[3+2] annulation

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10.1016/j.tetlet.2017.06.049

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title = "Cobalt-catalyzed regioselective [3+2] annulation of ortho-formyl and acetyl substituted phenylboronic acids with alkynes",

abstract = "Treatment of alkynes with ortho-formyl and acetyl phenylboronic acids in the presence of a cobalt catalyst resulted in the formation of 2,3-disubstituted indenols in good yields. When aryl silyl alkynes were used, 2-aryl-3-silyl indenols were obtained regioselectively in good yields.",

keywords = "2,3-Disubstituted indenol, Cobalt, ortho-Carbonylated phenylboronic acid, Silyl aryl alkyne, [3+2] annulation",

author = "Mitsuhiro Ueda and Tamami Ueno and Yuki Suyama and Ilhyong Ryu",

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doi = "10.1016/j.tetlet.2017.06.049",

language = "English",

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journal = "Tetrahedron Letters",

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T1 - Cobalt-catalyzed regioselective [3+2] annulation of ortho-formyl and acetyl substituted phenylboronic acids with alkynes

AU - Ueda, Mitsuhiro

AU - Ueno, Tamami

AU - Suyama, Yuki

AU - Ryu, Ilhyong

PY - 2017/7/26

Y1 - 2017/7/26

N2 - Treatment of alkynes with ortho-formyl and acetyl phenylboronic acids in the presence of a cobalt catalyst resulted in the formation of 2,3-disubstituted indenols in good yields. When aryl silyl alkynes were used, 2-aryl-3-silyl indenols were obtained regioselectively in good yields.

AB - Treatment of alkynes with ortho-formyl and acetyl phenylboronic acids in the presence of a cobalt catalyst resulted in the formation of 2,3-disubstituted indenols in good yields. When aryl silyl alkynes were used, 2-aryl-3-silyl indenols were obtained regioselectively in good yields.

KW - 2,3-Disubstituted indenol

KW - Cobalt

KW - ortho-Carbonylated phenylboronic acid

KW - Silyl aryl alkyne

KW - [3+2] annulation

UR - http://www.scopus.com/inward/record.url?scp=85021188660&partnerID=8YFLogxK

U2 - 10.1016/j.tetlet.2017.06.049

DO - 10.1016/j.tetlet.2017.06.049

M3 - Article

AN - SCOPUS:85021188660

SN - 0040-4039

VL - 58

SP - 2972

EP - 2974

JO - Tetrahedron Letters

JF - Tetrahedron Letters

IS - 30

ER -

Cobalt-catalyzed regioselective [3+2] annulation of ortho-formyl and acetyl substituted phenylboronic acids with alkynes

Abstract

Keywords

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