104722-87-4

Upstream product

• 21856-94-0 di-p-tolyl diselenide 
• 108-24-7 acetic anhydride 
• 75-36-5 acetyl chloride 
• 20753-52-0 toluene-4-seleninic acid 
• 1068-57-1 acetic acid hydrazide 

Downstream Products

• 20343-90-2 bis(phenylseleno)methane 
• 61759-13-5 1-(phenylselanyl)propan-2-one 
• 20343-91-3 bis(p-tolylseleno)methane 
• 104722-91-0 1-Methyl-4-phenylselanylmethylselanyl-benzene 
• 68395-94-8 1-phenyl-3-(phenylseleno)propanone 
• 104722-83-0 1-(p-tolylselanyl)propan-2-one 
• 104722-82-9 1-phenyl-3-(p-tolylseleno)propanone 
• 67-64-1 acetone 

Relevant academic research and scientific papers

Cleavage of Se-Se bond by Sm/cat. Cocl2 system: A novel method for the synthesis of selenoesters

The Sm/cat. COCl2 system promoted desalinates to react with anhydrides or acyl chlorides to afford selenoesters in good yield under mild and neutral conditions.

Cleavage of Se-Se bond by Sm/cat.CoCl2 system: A facile and novel method for the preparation of selenoesters

The Sm/cat.CoCl2 system promoted diselenides to react with anhydrides or acyl chlorides to afford selenoesters in good yields under mild and neutral conditions.

Reductive cleavage of the Se-Se bond in diselenides by the CeCl 3/Sm system: A novel method for the synthesis of selenoesters

Treatment of diaryl diselenides 1 with cerium trichloride and metallic samarium in tetrahydrofuran conveniently gives samarium aryl selenolates, the "living" species which react with acid chlorides and acid anhydrides to afford sclenoesters 2 in good yiel

Low-valent titanium induced reductive coupling of diaryl diselenides with acid chlorides or acid anhydrides: facile synthesis of selenoestersf

Selenoesters have been prepared in good yieFd b'yreaction of diaryl diselenides with acid chlorides or acid anhydrides induced by the TiCI4-Sm-THF system under mild reaction conditions.

Reductive cleavage of the Se-Se bond by the Sm/CrCl3 system: A novel one-pot method for the synthesis of selenoesters

Diaryl diselenides can react with acid chlorides or acid anhydrides in one-pot by the Sm/CrCl3 system to give selenoesters in moderate to good yields under mild and neutral conditions.

REACTION OF DIAZOMETHANE WITH SELENOESTERS PREPARATION OF α-(ALKYL- OR ARYLSELENO)METHYL KETONES AND METHYL KETONES

The reaction of diazomethane with a series of selenoesters 1 in the presence of CuI, CuSePh or Cu powder produced α-(alkyl- or arylseleno)methyl ketones 2 in yield of 41-65percent.Methyl ketones 3 and bis(arylseleno)methanes 9 or 14 were formed as by-products.The direct conversion of selenoesters to methyl ketones was accomplished in high yield by the usual reaction with diazomethane, followed by workup with HBr solution.The simultaneous copper-catalyzed reactions of selenoesters 1c and 1i with diazomethane resulted in crossover, with the formation of all four possible α-seleno ketones 2b, 2c, 2h and 2i.A non-concerted mechanism involving attack by the diazo compound upon the acyl carbon atom of an activated selenoester with the formation of a tetrahedral intermediate 11 has been suggested.The reaction of the selenothiocarbamate 4 with diazomethane resulted in 1,3-dipolar cycloaddition to afford 5 instead of insertion into the acyl-selenium bond.