58219-89-9

Upstream product

• 1199-01-5 2-phenylazlactone 
• 538-51-2 benzylidene phenylamine 
• 62-53-3 aniline 
• 17606-70-1 (4Z)-4-benzylidene-2-phenyl-1,3-oxazol-5(4H)-one 
• 15732-43-1 (E)-2-phenyl-4-benzylidene-5(4H)-oxazolone 
• 495-69-2 Hippuric Acid 
• 34092-17-6 3-benzoylamino-1,4-diphenylazetidin-2-one 
• 100-52-7 benzaldehyde 
• 103-72-0 phenyl isothiocyanate 

Downstream Products

• 4497-90-9 (1R,3R)-1,5,6-Triphenyl-4,6-diaza-spiro[2.4]hept-4-en-7-one 
• 4497-90-9 (1S,3R)-1,5,6-Triphenyl-4,6-diaza-spiro[2.4]hept-4-en-7-one 
• 95605-64-4 (Z)-2,3-diphenyl-5-(α-phenylethylidene)-4(5H)-imidazolone 
• 81419-91-2 (4Z)-4-benzylidene-1,2-diphenyl-1,4-dihydro-5H-imidazolin-5-one 

Relevant academic research and scientific papers

Derivatives of α,β-dehydro amino acids: I. Synthesis of 1-aryl-2,4-disubstituted imidazol-5-ones from arylamides of N-benzoyl-α, β-dehydrophenylalanine and trimethylchlorosilane

A preparation method was developed for 1-aryl-2,4-disubstituted imidazol-5-ones from N-benzoyl-α,β-dehydrophenylalanine anilides or 2-phenyl-4-benzylidene-5-oxazolone and arylamine in the presence of trimethylchlorosilane. 2004 MAIK "Nauka/Interperiodica"

Acid-aided reactions of 3-acylamino-β-lactams: Some observations

3-Benzoylamino-1,4-diphenylazetidin-2-one (1a) gives 2-benzoylaminocinnamanilide (3a) and 4-benzylidene-1,2-diphenylimidazolin-5-one (4a) when heated in gl. acetic acid containing conc.H2SO4. 3-Acetylaminoazetidin-2-one (1b) forms tar under similar conditions, but in the presence of benzaldehyde it affords 2-cinnamoylaminocinnamanilide (3c) and 4-benzylidene-2-styryl-2-imidazolin-5-one (4c). 3-(2-Benzoylaminocinnamoylamino)-1,4-diphenylazetidin-2-one (1c), on the other hand furnishes 4-benzylidene-2-phenyl-2-oxazolin-5-one (2a) and 3-amino-1,4-diphenylazetidin-2-one (14).Mechanisms are given.

A new methodology for the synthesis of N-acylaminocinnamates

A new synthesis of biologically active N-protected amino acids (2) and amides (4) from 4-ylidene-5(4H)-oxazolones (1) is described.

Isothiocyanate-Mediated Condensation of N-Acyl-α-amino Acids with Aromatic Aldehydes: One-Pot Synthesis of 1,2-Disubstituted 4-Arylmethylene-2-imidazolin-5-ones

N-Acetyl/benzoyl-amino acids (1c/1b, d) when heated with isothiocyanates (2) in the presence of suitable aromatic aldehydes (3) with pyridine as a catalyst, afford 1, 2-disubstituted 4-arylmethylene-2-imidazolin-5-ones (6).However, N-benzyloxycarbonylaminoacetic acid (1a) gives the corresponding anilide (11a).Mechanisms of these reactions are discussed.

ON THE SYNTHESIS OF UNSATURATED 4(5H)-IMIDAZOLONES

(Z)-2,3-Diphenyl-5-benzylidene-4(5H)-imidazolone and (Z)-2,3-diphenyl-5-(α-phenylethylidene)-4(5H)-imidazolone were obtained from the corresponding (Z)-2-phenyl-4-benzylidene-5(4H)-oxazolone and (Z)-2-phenyl-4-(α-phenylethylidene)-5(4H)-oxazolone and anil