503003-54-1Relevant academic research and scientific papers
Synthesis and structure of 1,3,4-oxaza(thiaza)phospholines
Khailova,Krepysheva,Saakyan,Bagautdinova,Shaimardanova,Zyablikova,Azancheev,Litvinov,Gubaidullin,Zverev,Pudovik,Pudovik
, p. 1071 - 1081 (2002)
Bis(chloromethyl)phosphinic (-phosphinothioic) iso(thio)cyanates add secondary amines to form N-phosphorylated (thio)ureas, which cyclize in the presence of a base to 1,3,4λ5-oxaza(thiaza)phospholines. Phosphorylated ureas obtained by addition of ammonia and primary amines to chloromethylphosphonic (-phosphinic) isocyanates cyclize to give 1,4,2-diazaphospholidines or 1,3,4-oxazaphospholines. Prototropic transformations in the series of 1,3,4λ5-oxazaphospholines were revealed; the electronic and steric structures of the tautomers were studied. Chloromethylphosphonothioic (-phosphinothioic) isothiocyanates add primary amines to give 1,3,4λ5-thiazaphospholines.
