✦ LIBER ✦

Synthesis and reactions of 4H-3,1-benzothiazines

✍ Scribed by S. I. El-Desoky; E. M. Kandeel; A. H. Abd-El-Rahman; R. R. Schmidt

Publisher: Journal of Heterocyclic Chemistry
Year: 1999
Tongue: English
Weight: 516 KB
Volume: 36
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570360124

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: Synthesis and React

ChemInform Abstract: Synthesis and Reactions of 4H-3,1-Benzothiazines.

✍ S. I. El-Desoky; E. M. Kandeel; A. H. Abd-el-Rahman; R. R. Schmidt 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB 👁 2 views

Synthesis and Reactions of 4H-3,1-Benzothiazines. -The target compound of this study is the pyrrolo[1,2-a]indole skeleton which is the essential ring system of the active antitumor mitomycins. Although the synthesis of this ring system fails, a number of novel heterocycles is obtained affording new

Studies on the reaction of 3-substituted

Studies on the reaction of 3-substituted-4-hydroxy-2H-1,2-benzothiazine 1,1-dioxides with aryl isocyanates and the synthesis of corresponding derivatives

✍ Zhao Guo-Feng; Yang Hua-Zheng 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 286 KB 👁 1 views

The reaction of 3-substituted-4-hydroxyroxy-2H-1,2-be~othiazine 1,l-dioxides with aryl isocyanate under different equivalents of strong base NaH was studied. Seventeen of new derivatives were obtained whose structures were characterized by ' H NMR, IR, MS, elementary analysis and FeCls test. ## Key

Organic Azides in Heterocyclic Synthesis

Organic Azides in Heterocyclic Synthesis. Part 31. Thermolytic Ring Closure Reactions of 4-Azido-3-phenylsulfanyl- and 4-Azido-3-phenylsulfonyl-2-quinolones to 12H-Quinolino[3,4-b][1,4]benzothiazin-6(5H)-ones.

✍ Anna E. Taeubl; Klaus Langhans; Thomas Kappe; Wolfgang Stadlbauer 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 196 KB 👁 2 views

## Abstract For Abstract see ChemInform Abstract in Full Text.

ChemInform Abstract: Staudinger and retr

ChemInform Abstract: Staudinger and retro-Staudinger Reactions. The Dichloro-β-lactam Moiety as a Useful Handle for the Synthesis of 4-Aryl-2H-1,3-benzothiazine 1,2-Dioxides.

✍ Lajos Fodor; Peter Csomos; Antal Csampai; Pal Sohar 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

## Abstract The title compounds (V), which cannot be obtained by direct oxidation of (I), are prepared using the reversible formation of a dichloro‐β‐lactam moiety as novel protecting group.

A facile synthesis of 2-cyano-4H-3,1- be

A facile synthesis of 2-cyano-4H-3,1- benzothiazines and 2-cyano-4H-3,1-benzoxazines

✍ Hyunil Lee; Kyongtae Kim 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 812 KB

## Treatment of the hydrochloride salts of 4-chloro-5-(2halomethylaryl-imino)-5H-l,2,3-dithiazoles (2) with sodium cyanoborohydride in THF at room temperature gave 2-cyan0-4H-3,l -benzothiazines ( I ) in good to moderate yields. 2-Cyano-4H-3,l -benzoxazines (4) were obtained in good to moderate yiel

Synthesis and Anticancer Activity of New

Synthesis and Anticancer Activity of New 2-Aryl-4H-3,1-benzothiazines

✍ Andrzej Niewiadomy; Joanna Matysiak; Monika M. Karpińska 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 153 KB 👁 2 views

## Abstract New compounds of 2‐aryl‐4__H__‐3,1‐benzothiazine set were synthesized and tested for their antiproliferative activity as part of our research in the antitumor field. The title compounds were obtained by the reaction of aryl‐modified sulfinylbis((2,4‐dihydroxyphenyl)methanethione) with 2