774-32-3

Basic information

• Product Name: 4H-1,3-Benzoxazin-4-one, 6-chloro-2,3-dihydro-2-thioxo-
• CAS NO: 774-32-3
• Molecular Formula: C8H4ClNO2S
• Molecular Weight: 213.644
• Mol File: 774-32-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4H-1,3-Benzoxazin-4-one, 6-chloro-2,3-dihydro-2-thioxo-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1,3-Benzoxazin-4-one, 6-chloro-2,3-dihydro-2-thioxo-(774-32-3)
• EPA Substance Registry System: 4H-1,3-Benzoxazin-4-one, 6-chloro-2,3-dihydro-2-thioxo-(774-32-3)

Safety Data

• Hazardous Substances Data: 774-32-3(Hazardous Substances Data)

Upstream product

• 89430-08-0 C₂₀H₁₅N₂PS₂ 
• 321-14-2 5-chloro-2-hydroxybenzoic acid 

Relevant articles and documents

Generalized method for the production of 1,3-benzoxazine, 1,3-benzothiazine, and quinazoline derivatives from 2-(hydroxy, thio, or amino) aromatic acids using triphenylphosphine thiocyanogen

A modified one-pot method was developed for the synthesis of 1,3-benzoxazines, in which the preparation of unstable thiocyanogen was omitted. The method was found to be general for substituted (methyl, methoxy, halo, and hydroxy) 2-hydroxy benzoic acids and 2-hydroxy naphthoic acids. The method was extended to 2-thio, 2-amino, and N-methyl aminobenzoic acid with which the synthesis of 1,3-benzothiazine and quinazoline derivatives has been achieved, respectively. It was also found that 3-hydroxypyridine-2-carboxylic acid and 2-hydroxynicotinic acid using a modified method gave 2-thioxo-2,3-dihydro-4H- pyrido[2,3-e][1,3]oxazin-4-one and 2-thioxo-2,3-dihydro-4H-pyrido[3,2-e][1,3] oxazin-4-one, respectively. The structures of the new compounds were confirmed by the analysis of their IR, 1H, and 13C NMR spectra. Copyright Taylor & Francis, Inc.