Results 151 to 160 of about 3,633 (196)

ChemInform Abstract: Benzothiazines in Organic Synthesis. Stereoselectivity in the Intermolecular Michael Addition Reactions of Benzothiazines.

ChemInform, 2008
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Michael Harmata, Yugang Chen, Charles L. Barnes   +2 more
openaire   +1 more source

New benzoxazine and benzothiazine dyes

Tetrahedron, 1976
Abstract 2H-1,4-benzoxazine can be generated in situ from 1-(o-aminophenoxy)-2,2′-dimethoxyethane in trifluoroacetic acid whence further reaction leads to the benzoxazine bye 7. The benzothiazine dye 9 can be derived in similar fashion from 1-(o-aminophenylthio)-2,2-diethoxyethane.
F. Chioccara, G. Prota, R.H. Thomson
openaire   +1 more source

Further Studies of Benzothiazine Metalation

Synthesis, 2013
Treatment of benzothiazines 3 and 8 with butyllithium resulted in deprotonation at C3 to afford the corresponding organolithium species. These compounds could be trapped with a variety of electrophiles to give products in high yield. Some limitations to the processes chiefly based on steric effects were uncovered.
Michael Harmata, Nathan Calkins
openaire   +1 more source

A review on synthesis of benzothiazine analogues

Research Journal of Pharmacy and Technology, 2017
Scientific advances mainly involves the development of new and highly reactive compounds. Nitrogen and sulphur containing benzothiazines forms highly active heterocyclic agents. Benzothiazines are prominent class of heterocyclic compound. Many studies have been done in the development of benzothiazine analogues.
Neethu Rajiv, N. Sreelakshmi, Jisni Rajan, K. Leena Pappachen   +3 more
openaire   +1 more source

ChemInform Abstract: 1,4‐Benzothiazines, Dihydro‐1,4‐benzothiazines and Related Compounds

Chemischer Informationsdienst, 1985
C. BROWN, R. M. DAVIDSON
openaire   +1 more source

Enantioselective Synthesis of 1,2-Benzothiazine 1-Imines via RuII/Chiral Carboxylic Acid-Catalyzed C−H Alkylation/Cyclization

Angewandte Chemie - International Edition, 2023
Tatsuhiko Yoshino, Masahiro Kojima, Shigeki Matsunaga   +2 more
exaly  

Dilithiation of a 2,1-Benzothiazine

HETEROCYCLES, 2016
Michael Harmata, Nathan L. Calkins
openaire   +1 more source

Synthesis, Cytotoxic and Antioxidant Activities of Azolyl Benzothiazine Carboxamides

Research on Chemical Intermediates, 2019
Padmaja Adivireddy, Siva Sankar Panga
exaly  

Facile One‐Pot Synthesis of 4‐Hydroxy‐2‐Methyl‐(2H)‐1,2‐Benzothiazine‐3‐Sulfonic Acid 1,1‐Dioxide

Synthetic Communications, 2007
George W Weaver, Islam Ullah Khan, Hamid Latif Siddiqui   +2 more
exaly  

Discovery of (2-Benzoylethen-1-Ol)-Containing 1,2-Benzothiazine Derivatives as Novel 4-Hydroxyphenylpyruvate Dioxygenase (HPPD) Inhibiting-Based Herbicide Lead Compounds

Bioorganic and Medicinal Chemistry, 2016
Kang Lei, Xuewen Hua, Chui-Hua Kong
exaly