Four-component synthesis of indazole through Ugi-Azide coupling

Laurent El Kaïm; Laurence Grimaud; Srinivas Reddy Purumandla

doi:10.1055/s-0031-1290075

Four-component synthesis of indazole through Ugi-Azide coupling

Laurent El Kaïm
, Laurence Grimaud
, Srinivas Reddy Purumandla

Unité Chimie et Procédés

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

Abstract

ortho-Nitrobenzaldehyde and trimethylsilyl azide were used in a Ugi-Cadogan cascade towards tetrazolyl indazoles. After the Ugi step, the intermediate tetrazoles were not purified but directly heated with triethyl phosphite to form the final indazoles.

Original language	English
Pages (from-to)	295-297
Number of pages	3
Journal	Synlett
Issue number	2
DOIs	https://doi.org/10.1055/s-0031-1290075
Publication status	Published - 4 Jan 2012
Externally published	Yes

Keywords

Ugi
cadogan
indazole
phosphite
tetrazole

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10.1055/s-0031-1290075

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title = "Four-component synthesis of indazole through Ugi-Azide coupling",

abstract = "ortho-Nitrobenzaldehyde and trimethylsilyl azide were used in a Ugi-Cadogan cascade towards tetrazolyl indazoles. After the Ugi step, the intermediate tetrazoles were not purified but directly heated with triethyl phosphite to form the final indazoles.",

keywords = "Ugi, cadogan, indazole, phosphite, tetrazole",

author = "\{El Ka{\"i}m\}, Laurent and Laurence Grimaud and Purumandla, \{Srinivas Reddy\}",

year = "2012",

month = jan,

day = "4",

doi = "10.1055/s-0031-1290075",

language = "English",

pages = "295--297",

journal = "Synlett",

issn = "0936-5214",

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AU - El Kaïm, Laurent

AU - Grimaud, Laurence

AU - Purumandla, Srinivas Reddy

PY - 2012/1/4

Y1 - 2012/1/4

N2 - ortho-Nitrobenzaldehyde and trimethylsilyl azide were used in a Ugi-Cadogan cascade towards tetrazolyl indazoles. After the Ugi step, the intermediate tetrazoles were not purified but directly heated with triethyl phosphite to form the final indazoles.

AB - ortho-Nitrobenzaldehyde and trimethylsilyl azide were used in a Ugi-Cadogan cascade towards tetrazolyl indazoles. After the Ugi step, the intermediate tetrazoles were not purified but directly heated with triethyl phosphite to form the final indazoles.

KW - Ugi

KW - cadogan

KW - indazole

KW - phosphite

KW - tetrazole

U2 - 10.1055/s-0031-1290075

DO - 10.1055/s-0031-1290075

M3 - Article

AN - SCOPUS:84855831145

SN - 0936-5214

SP - 295

EP - 297

JO - Synlett

JF - Synlett

IS - 2

ER -

Four-component synthesis of indazole through Ugi-Azide coupling

Abstract

Keywords

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