Synthesis of novel 1,2,4-triazolo[3,2-d][1,5]benzoxazepin-2-ones

Zheng Li; Quan Rui Wang; Feng Gang Tao

Synthesis of novel 1,2,4-triazolo[3,2-d][1,5]benzoxazepin-2-ones

Zheng Li, Quan Rui Wang, Feng Gang Tao

Houston Methodist

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

Abstract

A series of novel tricyclic O, N-heterocycles 5a-5g, a kind of unprecedented 1,2,4-triazolo[3,2-d]-[1,5] benzoxazepin-2-ones, have been achieved via acid-induced ring closure of isocyanatoarylazo compounds 3, which were prepared from chroman-4-one in three steps, followed by feasible rearrangement. The structural assignment of 5a has been ultimately accomplished by X-ray diffraction analysis.

Original language	English (US)
Pages (from-to)	893-897
Number of pages	5
Journal	Chinese Journal of Organic Chemistry
Volume	24
Issue number	8
State	Published - Aug 1 2004

Keywords

1,2,4-triazolo[3,2] [1,5]benzoxazepin-2-one
Geminal arylazo isocyanate
Rearrangement
Ring closure

ASJC Scopus subject areas

Organic Chemistry

Cite this

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title = "Synthesis of novel 1,2,4-triazolo[3,2-d][1,5]benzoxazepin-2-ones",

abstract = "A series of novel tricyclic O, N-heterocycles 5a-5g, a kind of unprecedented 1,2,4-triazolo[3,2-d]-[1,5] benzoxazepin-2-ones, have been achieved via acid-induced ring closure of isocyanatoarylazo compounds 3, which were prepared from chroman-4-one in three steps, followed by feasible rearrangement. The structural assignment of 5a has been ultimately accomplished by X-ray diffraction analysis.",

keywords = "1,2,4-triazolo[3,2] [1,5]benzoxazepin-2-one, Geminal arylazo isocyanate, Rearrangement, Ring closure",

author = "Zheng Li and Wang, {Quan Rui} and Tao, {Feng Gang}",

year = "2004",

month = aug,

day = "1",

language = "English (US)",

volume = "24",

pages = "893--897",

journal = "Chinese Journal of Organic Chemistry",

issn = "0253-2786",

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T1 - Synthesis of novel 1,2,4-triazolo[3,2-d][1,5]benzoxazepin-2-ones

AU - Li, Zheng

AU - Wang, Quan Rui

AU - Tao, Feng Gang

PY - 2004/8/1

Y1 - 2004/8/1

N2 - A series of novel tricyclic O, N-heterocycles 5a-5g, a kind of unprecedented 1,2,4-triazolo[3,2-d]-[1,5] benzoxazepin-2-ones, have been achieved via acid-induced ring closure of isocyanatoarylazo compounds 3, which were prepared from chroman-4-one in three steps, followed by feasible rearrangement. The structural assignment of 5a has been ultimately accomplished by X-ray diffraction analysis.

AB - A series of novel tricyclic O, N-heterocycles 5a-5g, a kind of unprecedented 1,2,4-triazolo[3,2-d]-[1,5] benzoxazepin-2-ones, have been achieved via acid-induced ring closure of isocyanatoarylazo compounds 3, which were prepared from chroman-4-one in three steps, followed by feasible rearrangement. The structural assignment of 5a has been ultimately accomplished by X-ray diffraction analysis.

KW - 1,2,4-triazolo[3,2] [1,5]benzoxazepin-2-one

KW - Geminal arylazo isocyanate

KW - Rearrangement

KW - Ring closure

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M3 - Article

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VL - 24

SP - 893

EP - 897

JO - Chinese Journal of Organic Chemistry

JF - Chinese Journal of Organic Chemistry

SN - 0253-2786

IS - 8

ER -

Synthesis of novel 1,2,4-triazolo[3,2-d][1,5]benzoxazepin-2-ones

Abstract

Keywords

ASJC Scopus subject areas

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