65884-79-9

Usage

InChI:InChI=1/C12H23N2O5P/c1-6-18-20(17,19-7-2)11(3,4)8-12(5)9(15)13-10(16)14-12/h6-8H2,1-5H3,(H2,13,14,15,16)

Upstream product

• 141-79-7 4-methyl-pent-3-en-2-one 
• 762-04-9 Diethyl phosphonate 
• 7750-03-0 diethyl(1,1-dimethyl-3-oxobutyl)phosphonate 

Relevant academic research and scientific papers

5-Substituted phosphonate hydantoins and derivatives thereof

Hydantoins of the formula STR1 wherein R1 is hydrogen or alkyl of 1 to 8 carbon atoms, R2 is STR2 R3 is alkyl of 1 to 8 carbon atoms, and X is a straight or branched chain alkylene of 1 to 4 carbon atoms or a straight or branched chain alkylene of 3 to 6 carbon atoms containing an internal carbamido group; or R1 and R2 together are Y where Y is a straight or branched chain alkylene of 4 to 8 carbon atoms having a pendant STR3 moiety are prepared by reacting first α,β-unsaturated aldehydes or ketones with alkyl phosphites to form a phosphonate aldehyde or ketone followed by a classical Bucherer hydantoin synthesis. These compounds are intermediates for the preparation of polyglycidyl compounds useful in making flame-retardant epoxy resins. These hydantoins are also intermediates useful in preparing flame-retardant polyesters and polyurethanes.