18365-29-2

Upstream product

• 603-35-0 triphenylphosphine 
• 29393-95-1 diethyl 2-oxo-3-triphenylphosphoranylidenebutanedioate 
• 21204-67-1 methyl (triphenylphosphoranylidene)acetate 
• 20913-05-7 (Benzoylmethylene)triphenylphosphorane 
• 1439-36-7 1-triphenylphosphoranylidene-2-propanone 
• 175791-75-0 1,4-Diphenyl-1,4-bis-(triphenyl-λ⁵-phosphanylidene)-butane-2,3-dione 
• 76068-72-9 (α-Acetyl-benzyliden)-triphenylphosphoran 
• 30416-76-3 (benzoylphenylmethylene)triphenylphosphorane 
• 1474-32-4 3-(triphenylphosphoranylidene)pentane-2,4-dione 
• 108-90-7 chlorobenzene 

Relevant academic research and scientific papers

Reaction of stabilised phosphorus ylides with nitrogen dioxide

The reaction of the stabilised ylides 14-23 with an excess of NO2 in CH2Cl2 at room temperature gives different results depending on the structure of the starting ylide. The monacyl ylides 14-16 give the corresponding α-oxo nitriles 4 together with Ph3PO · HNO3 (24) which has been fully characterised for the first time. Under the same conditions, the ylide 18 gives 2,4-dinitrobenzonitrile (26), Ph3PO, and benzoic acid. The other ylides examined all give 24 together with a variety of other products.