139435-28-2Relevant academic research and scientific papers
CONVENIENT ONE-POT CONVERSION OF 2-PHENYL-3,1-BENZOXAZIN-4-ONE TO 2-(o-BENZOYLAMINOPHENYL)-1,3,4-OXADIAZOLIN-5-THIONE
Ismail, M. Fekry,Emara, Samir A.,Mustafa, Omnia E. A.
, p. 373 - 376 (2007/10/02)
2-Phenyl-3,1-benzoxazin-4-one (1) reacted with a mixture of hydrazine hydrate and carbon disulphide in the presence of potassium hydroxide to give 2-(o-benzoylaminophenyl)-1,3,4-oxadiazolin-5-thione (2) which was also formed in better yield by the reaction of o-benzoylaminobenzhydrazide (5) with carbon disulphide and potassium hydroxide.The reaction of (2) with ethyl iodide, formaldehyde in the presence of morpholine, and with amines was also investigated. Key words: 2-Phenyl-3,1-benzoxazin-4-one; 2-(o-benzoylaminophenyl)-1,3,4-oxadiazolin-5-thione; o-benzoylaminobenzhydrazine.
