72041-41-9

Upstream product

• 623-73-4 diazoacetic acid ethyl ester 
• 1666-13-3 diphenyl diselenide 
• 5707-04-0 Phenylselenyl chloride 
• 51364-94-4 ethyl 2-(phenylselanyl)acetate 
• 112238-64-9 phenylselenyl triflate 
• 142753-40-0 ethyl-α-chloro-α-phenylseleno acetate 
• 762-72-1 allyl-trimethyl-silane 
• 142753-36-4 α-fluoro-α-(phenylselanyl)acetic acid ethyl ester 
• 34837-55-3 Phenylselenyl bromide 

Downstream Products

• 138100-86-4 (2,5-Dimethyl-phenyl)-phenylselanyl-acetic acid ethyl ester 
• 138100-81-9 (2-Ethyl-phenyl)-phenylselanyl-acetic acid ethyl ester 
• 138100-82-0 (4-Ethyl-phenyl)-phenylselanyl-acetic acid ethyl ester 
• 138100-80-8 Phenylselanyl-p-tolyl-acetic acid ethyl ester 
• 138100-79-5 Phenylselanyl-o-tolyl-acetic acid ethyl ester 
• 138100-85-3 ethyl α-(phenylseleno) mesityl acetate 
• 138100-78-4 ethyl α-phenylseleno phenyl acetate 
• 138100-77-3 α-Bromo,α-phenylseleno ethyl acetate 
• 138100-83-1 (5-Isopropyl-2-methyl-phenyl)-phenylselanyl-acetic acid ethyl ester 
• 138100-84-2 (2-Isopropyl-5-methyl-phenyl)-phenylselanyl-acetic acid ethyl ester 

Relevant academic research and scientific papers

Scandium-catalyzed carbon-carbon bond formations using α- organosulfanyl and organoselanyl-α-fluoroacetic acid derivatives

The scandium-catalyzed reactions of α-organosulfanyl and organoselanyl-α-fluoroacetates 1-2, acetamides 3-4 and acetonitrile 5 with soft nucleophiles proceeded to give the products 6a-b, 7a-c, 8a-c, 9a-e in good to high yields. We also successfully perfor

The reaction of phenylselenenyl triflate with diazo compounds

The reaction of phenylselenenyl triflate with diazo compounds is described. Diazoalkanes, α-diazoketones and α-diazoesters gave the corresponding di(phenylselanyl) derivatives either at 0 °C or at room temperature, α-Diazo-β-dicarbonyl compounds gave selectively di(phenylselanyl) derivatives at - 78 °C, while they gave a mixture of di(phenylselanyl)- and mono(phenylselanyl) derivatives either at 0 °C or at room temperature.

Preparation and oxidation of α-phenylselanyl esters

Alkylation and selenenylation of selenium-stabilized ester enolates have allowed the preparation of α-phenylselanyl esters 5, 7, 8 and of α,α-bis(phenylselanyl)esters 6, respectively. The competitive selenophilic reaction, leading to an allylic phenylselenide 9, was avoided in the presence of HMPA. α-phenylselanyl α,β-unsaturated esters 15 were prepared by oxidation of compounds 6 and dehydrohalogenation of β-chloroesters 17. Some other transformations: oxidation, transesterification and Grignard reaction were also studied. H2O2 oxidation of Z-esters 15 has led to stable E-α-seleninyl esters 20. (C) 2000 Elsevier Science Ltd.

Synthesis of α-phenylchalcogeno acetic acids, ethyl-α-phenylchalcogeno acetates and ethyl-α-halo-α-phenylchalcogeno acetates

Reaction of phenyltellurolate or phenylselenolate anion with α-bromoacetic acid under phase transfer conditions using a liquid-solid system affords the α-phenyltelluro acetic acid and the α-phenylseleno acetic acid in 44 and 50percent yields respectively.