Synthesis of 2-oxo-[1,2,4]triazolo[3,2-d] [1,5]benzoxazepines: A kind of novel tricyclic O,N-heterocycles

Zheng Li; Quanrui Wang; Fenggang Tao

doi:10.1081/SCC-120030757

Synthesis of 2-oxo-[1,2,4]triazolo[3,2-d] [1,5]benzoxazepines: A kind of novel tricyclic O,N-heterocycles

Zheng Li, Quanrui Wang, Fenggang Tao

Academic Institute

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

4 Scopus citations

Abstract

The synthesis of a series of novel tricyclic O,N-heterocycles 7a-k, a kind of unprecedented 2-oxo-[1,2,4]triazolo[3,2-d][1,5]benzoxazepine derivatives, has been accomplished, featuring acid-induced ring closure of the geminal arylazo isocyanato compounds 5, which were prepared from chroman-4-ones in three steps, followed by feasible ring expansion and basic work-up.

Original language	English (US)
Pages (from-to)	1691-1702
Number of pages	12
Journal	Synthetic Communications
Volume	34
Issue number	9
DOIs	https://doi.org/10.1081/SCC-120030757
State	Published - 2004

Keywords

Chroman-4-ones
Column chromatography
O,N-Heterocycles
Ring expansion
Synthesis

ASJC Scopus subject areas

Organic Chemistry

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10.1081/SCC-120030757

Cite this

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title = "Synthesis of 2-oxo-[1,2,4]triazolo[3,2-d] [1,5]benzoxazepines: A kind of novel tricyclic O,N-heterocycles",

abstract = "The synthesis of a series of novel tricyclic O,N-heterocycles 7a-k, a kind of unprecedented 2-oxo-[1,2,4]triazolo[3,2-d][1,5]benzoxazepine derivatives, has been accomplished, featuring acid-induced ring closure of the geminal arylazo isocyanato compounds 5, which were prepared from chroman-4-ones in three steps, followed by feasible ring expansion and basic work-up.",

keywords = "Chroman-4-ones, Column chromatography, O,N-Heterocycles, Ring expansion, Synthesis",

author = "Zheng Li and Quanrui Wang and Fenggang Tao",

note = "Funding Information: We gratefully acknowledge financial support for this work from the National Natural Science Foundation of China through grant 20372015 and the Key Organic Synthesis Laboratory of Jiangsu Province (KJS01016). Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2004",

doi = "10.1081/SCC-120030757",

language = "English (US)",

volume = "34",

pages = "1691--1702",

journal = "Synthetic Communications",

issn = "0039-7911",

publisher = "Taylor and Francis Ltd.",

number = "9",

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TY - JOUR

T1 - Synthesis of 2-oxo-[1,2,4]triazolo[3,2-d] [1,5]benzoxazepines

T2 - A kind of novel tricyclic O,N-heterocycles

AU - Li, Zheng

AU - Wang, Quanrui

AU - Tao, Fenggang

N1 - Funding Information: We gratefully acknowledge financial support for this work from the National Natural Science Foundation of China through grant 20372015 and the Key Organic Synthesis Laboratory of Jiangsu Province (KJS01016). Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2004

Y1 - 2004

N2 - The synthesis of a series of novel tricyclic O,N-heterocycles 7a-k, a kind of unprecedented 2-oxo-[1,2,4]triazolo[3,2-d][1,5]benzoxazepine derivatives, has been accomplished, featuring acid-induced ring closure of the geminal arylazo isocyanato compounds 5, which were prepared from chroman-4-ones in three steps, followed by feasible ring expansion and basic work-up.

AB - The synthesis of a series of novel tricyclic O,N-heterocycles 7a-k, a kind of unprecedented 2-oxo-[1,2,4]triazolo[3,2-d][1,5]benzoxazepine derivatives, has been accomplished, featuring acid-induced ring closure of the geminal arylazo isocyanato compounds 5, which were prepared from chroman-4-ones in three steps, followed by feasible ring expansion and basic work-up.

KW - Chroman-4-ones

KW - Column chromatography

KW - O,N-Heterocycles

KW - Ring expansion

KW - Synthesis

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U2 - 10.1081/SCC-120030757

DO - 10.1081/SCC-120030757

M3 - Article

AN - SCOPUS:2442712637

SN - 0039-7911

VL - 34

SP - 1691

EP - 1702

JO - Synthetic Communications

JF - Synthetic Communications

IS - 9

ER -

Synthesis of 2-oxo-[1,2,4]triazolo[3,2-d] [1,5]benzoxazepines: A kind of novel tricyclic O,N-heterocycles

Abstract

Keywords

ASJC Scopus subject areas

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