42350-75-4

Upstream product

• 74-83-9 methyl bromide 
• 24143-92-8 acetylmethylidene(triphenyl)-λ⁵-arsane 
• 65-85-0 benzoic acid 
• 603-32-7 triphenyl-arsane 
• 598-31-2 1-bromoacetone 

Downstream Products

• 59540-39-5 4-(p-nitro-phenyl)-3-iodo-3-buten-2-one 
• 59540-32-8 (Z)-3-iodo-4-(4-nitrophenyl)-3-buten-2-one 
• 106104-32-9 2-(triphenylarsoranylidene)-2,4-pentanedione 
• 88220-96-6 (4S,5S)-4-Acetyl-5-(4-methoxy-phenyl)-dihydro-furan-2-one 
• 136022-21-4 (3E)-5-acetoxy-5-phenylpent-3-en-2-one 
• 466686-29-3 (3E)-5-acetoxy-5,5-diphenylpent-3-en-2-one 
• 466686-21-5 (3E,5E)-7-acetoxy-7-phenylhepta-3,5-dien-2-one 

Relevant academic research and scientific papers

Direct synthesis of α-acyl methylenetriphenylarsoranes from readily available arsonium salts

α-Acyl arsoranes can be synthesized by the acylation of readily available salts in the presence of triethylamine in moderate to good yields.

ALKYLATION OF ARSENIC AND PHOSPHORUS β-KETOYLIDES

The dual reactivity of a series of arsenic and phosphorus β-ketoylides in alkylation reactions and the effect of various factors on the reaction path were studied.The arsenic ketoylides were more susceptible to C-alkylation than the phosphorus ylides.In a number of cases C-alkylation was accompanied by secondary O-alkylation.The proportion of O-alkylation increases sharply in the transition from methyl iodide to methyl bromide and then to Me3O(1+)BF4(1-) and also in the series MeI, PhCH2I, EtI.The introduction of alkyl substituents at the α position greatly hinders C-alkylation.Only one of the two possible geometric isomers is always formed during the reactions at the oxygen center.X-ray crystallographic analysis of triphenyl(2-methoxy-1-propenyl)arsonium iodide showed that this compound was the Z isomer.