A Simple Ring-expansion of 1,4-Benzothiazines to give 1,5-Benzothiazepines

DOI: 10.1039/c39830000450

Source and publish data:

Journal of the Chemical Society. Chemical communications p. 450 - 451 (1983)

Update date:2022-08-04

Topics: Base Halogenation Acidic Workup 1,4-Benzothiazine

Authors:

Maki, Yoshifumi

Sako, Magoichi

Mitsumori, Naomichi

Maeda, Sadayuki

Takaya, Masahiro

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

Article abstract of DOI:10.1039/c39830000450

A new ring-expansion of 2-phenylmethylene-2H-1,4-benzothiazin-3(4H)-ones (1) to give 2,3-dihydro-3-oxo-2-phenyl-1,5-benzothiazepin-4(5H)-ones (3) has been developed; an episulphonium ion intermediate could be involved.

Full text of DOI:10.1039/c39830000450

View Article Online / Journal Homepage / Table of Contents for this issue

View Article Online

Products guided by the article

Product name:2-Hydroxy-2-(hydroxy-phenyl-methyl)-4-methyl-4H-benzo[1,4]thiazin-3-one

Cas No:87833-88-3

R&D Labs maybe for 87833-88-3

Wuxi Innopal International Trade CO.,LTD

Contact:+86-510-80711901-8003

Address:Room 402,Building 5,Longze Garden,No.17,South huanjiu Road,Yixing City, Jiangsu,China
JIAXING SUNS INTERNATIONAL TRADE CO LTD

Contact:18367306858

Address:No.123,Huixin Avenue,Huimin Dist
SHANDONG QINGYUNCHANGXIN CHEMICAL SCIENCE-TECH CO.,LTD

Contact:86-21-60560171

Address:1689Donghuan Rade,Qingyun County, Dezhou City, Shandong,China
Zhangjiagang Golden Reach Fine Chemical Co.,LTD.

Contact:+86-512-6585 6968

Address:Changfu Road， Dongsha Chemical Industry Park, Zhangjiagang City, Jiangsu Province, China
Yantai Derun Liquid Crystal Materials Co. Ltd.

website:http://www.ytderun.com

Contact:86-535-6300169

Address:ROOM 90, XIANGFU STREET, FUSHAN NEW-HIGH-TECH IDUSTRY ZONE, YANTAI

Relevant to this article

Annelation Reactions of Quinone Monoketals. Studies Directed at an Efficient Synthesis of Anthracyclinones

Doi:10.1021/jo00176a020
(1984)
Addition-Rearrangement Reaction of 3,4-Dihydro-2H-pyrans and 3,4-Dihydro-2-methoxy-2H-pyrans with (4-Methylphenyl)sulfonyl Isocyanate

Doi:10.1021/jo00175a049
(1984)
Synthesis of α-diazo-β-hydroxyesters through a one-pot protocol by phase-transfer catalysis: Application to enantioselective aldol-type reaction and diastereoselective synthesis of α-amino-β-hydroxyester derivatives

Doi:10.1016/j.tet.2005.11.028
(2006)
A new method for conversion of 2,3-dihydro-1,3-benzothiazoles into 1,4-benzothiazines

Doi:10.1055/s-1983-30502
(1983)
Divergent total synthesis of the tricyclic marine alkaloids lepadiformine, fasicularin, and isomers of polycitorols by reagent-controlled diastereoselective reductive amination

Doi:10.1002/chem.201404316
(2014)
ASYMMETRIC HYDROGENATION OF DEHYDRODIPEPTIDES WITH RHODIUM(I)-CHIRAL DIPHOSPHINITES. SELECTIVE (S,S)- AND (R,R)-PRODUCT FORMATION BY DOUBLE ASYMMETRIC INDUCTION.

Doi:10.1246/bcsj.57.823
(1984)

Article Doi