99699-18-0

Upstream product

• 99699-13-5 3-Benzenesulfonyl-2-methylene-5-phenyl-pentanoic acid phenylamide 
• 99699-32-8 2-methylene-N-phenyl-2-[(tributylstannyl)methyl]propanamide 
• 87504-85-6 N-phenyl-2-<(phenylsulfonyl)methyl>propenamide 
• 103-63-9 1-phenyl-2-bromoethane 
• 104-53-0 3-phenyl-propionaldehyde 
• 46756-66-5 Diaethyl-diphenyl-phosphonium 
• 103-71-9 phenyl isocyanate 

Relevant academic research and scientific papers

Reactivity of substituted and unsubstituted diphenylphosphonium diylides towards carbonic anhydride derivatives

The reactivity of diphenylphosphonium diylides was investigated towards carbonic anhydric derivatives. Unsubstituted and substituted non-stabilized diylides react with phenylisocyanate and dicyclohexylcarbodiimide, leading to the formation of new monoylide type intermediates. These last ones react in situ with carbonyl compounds through a Wittig reaction leading respectively to α,β-unsaturated amides and amidines. Substituted semi-stabilized or stabilized diylides, in similar conditions lead to the formation of alkenes. In all the cases a high E stereoselectivity, determined by 1H-NMR and 13-C-NMR, was observed.

DIANION OF N-PHENYL-2-(PHENYLSULFONYLMETHYL)PROPENAMIDE: AN EFFICIENT SYNTHETIC REAGENT FOR (E)-TRISUBSTITUTED OLEFINS AND 5,6-DIHYDRO-2H-PYRANS

The dianion of N-phenyl-2-(phenylsulfonylmethyl)propenamide was found to be an efficient reagent for the synthesis of (E)-α,β-unsaturated amides and 5,6-dihydro-2H-pyrans.