Synthesis of Benzopyranoisoxazol-4-ones from 2-Substituted Chromone-3-carboxylic Esters. A Reinvestigation of the Reaction of 3-Acetyl-4-hydroxycoumarins with Hydroxylamine. Synthesis of 4-(2-Hydroxybenzoyl)isoxazol-5-ones

DOI: 10.1021/jo00197a018

Source and publish data:

Journal of Organic Chemistry p. 4419 - 4424 (1984)

Update date:2022-07-29

Topics:

Authors:

Chantegrel, Bernard

Nadi, Abdel Ilah

Gelin, Suzanne

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1021/jo00197a018

A convenient method for the synthesis of ethyl 2-substituted chromone-3-carboxylates by the condensation of o-acetoxyaroyl chlorides with β-keto esters is described.These chromones are converted into the corresponding 4H-<1>benzopyrano<3,4-d>isoxazol-4-on

Full text of DOI:10.1021/jo00197a018

Products guided by the article

Product name:Benzenepropanoic acid, 2-(acetyloxy)-a-(hydroxyphenylmethylene)-b-oxo-, ethyl ester

Cas No:92397-15-4

R&D Labs maybe for 92397-15-4

Shanghai ZaiQi Bio-Tech Co., Ltd.,

Contact:+86-21-5482 4098

Address:Bldg. No.7, No.201 MinYi Rd，Songjiang CaoHeJing High-Tech Park Shanghai 201516 P,R,China
Shenzhen JYMed Technology Co.,Ltd.

website:http://www.jymedtech.com

Contact:+86-755-26612112

Address:1#8,9/F, Biomedicine innovation Industrial Park, No.14, Jinhui Road, Pingshan Sistrict, Shenzhen, China
Shanghai Bocimed Pharmaceutical Co., Ltd.

website:http://www.bocimed.com

Contact:+86-21-68861632

Address:Building 1, Lane 647, Songtao Road, Zhangjiang High-Tech Park, Shanghai
WEIFANG RICHEM INTERNATIONAL LTD

Contact:86-536-2222176

Address:weifang,shandong
Guangzhou Reachin Chemical Co., Ltd

Contact:+86-20-37087379 ext.604

Address:A122C-1, Tianyuan Plaza, 401 Tianyuan Rd., Tianhe, Guangzhou, China

Relevant to this article

Total synthesis of the Strychnos alkaloids (±)-akuammicine and (±)-norfluorocurarine from 3a-(o-nitrophenyl)hexahydroindol-4-ones by nickel(0)-promoted double cyclization

Doi:10.1021/jo960588l
(1996)
Electrophilic intermediate in the reaction of glutathione and nitrosoarenes

Doi:10.1021/ja00034a043
(1992)
An efficient cleavage of the aryl ether C-O bond in supercritical carbon dioxide-water

Doi:10.1039/c3cc41522h
(2013)
AN ENANTIOSELECTIVE ROUTE TO AN INTERMEDIATE OF THE CARBAPENAM SYSTEM FROM THE CHIRAL γ-BUTYROLACTONE

Doi:10.1246/cl.1982.631
(1982)
Microbial Degradation of the Phytosterol Side Chain. 2. Incorporation of NaH14CO3 onto the C-28 Position

Doi:10.1021/ja00381a056
(1982)
Self-assembled helices from 2,2′-Biimidazoles

Doi:10.1002/1521-3765(20010202)7:3<721::AID-CHEM721>3.0.CO;2-1
(2001)

Article Doi