116897-07-5

Upstream product

• 908093-98-1 diazodiphenylmethane 
• 119579-98-5 selenobenzophenone 
• 4214-38-4 (diphenylmethylene)triphenylphosphorane 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 90-99-3 diphenylchloromethane 
• 119-61-9 benzophenone 
• 56956-27-5 5,5-diphenyl-2,2-di-t-butyl-Δ³-1,3,4-selenadiazoline 
• 133528-13-9 (3aR,6aS)-3,3-Diphenyl-3,3a,4,6a-tetrahydro-cyclopenta[1,2]diselenole 

Relevant academic research and scientific papers

Efficient Synthesis of Selenocarbonyl Compounds by Treating Carbonyl Compounds with Bis(1,5-cyclooctanediylboryl) Selenide

Selenoaldehydes and selenoketones were generated in situ, by treating aldehydes or ketones, respectively, with bis(1,5-cyclooctanediylboryl) selenide; the resulting selenocarbonyl compounds were trapped with 2,3-dimethyl-1,3-butadiene to give the correspo

STEREOSELECTIVE SYNTHESIS OF TRANS OLEFINS BY THE REACTION OF WITTIG REAGENTS WITH SELENIUM. FORMATION OF SELENOCARBONYL COMPOUNDS.

Wittig reagents were successfully changed to symmetrical olefins when treated with elemental selenium.The reaction proceeds through a selenocarbonyl intermediate, which existence was confirmed by Diels-Alder reaction.

Selenobenzophenones and diazoalkanes: Isolation of tetraarylethylenes by the reaction of benzophenone hydrazones with diselenium dibromide

The reaction of selenobenzophenones with diazomethane afforded the corresponding diarylethylenes and symmetrical olefins. The reaction with diaryldiazomethanes gave three different types of tetraarylethylenes. This reaction proceeded through 1,3,4-selenadiazoline intermediates, and retrocyclization was observed. The formation of 1,3,4-selendiazolines was independently confirmed by the reaction of benzophenone hydrazones with diselenium dibromide, which afforded tetraarylethylenes in good yields. This method is applicable to the two-step synthesis of tetraarylethylenes from benzophenones. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

SELENOBENZOPHENONES AND DIAZOALKANES: REACTION AND MECHANISTIC ELUCIDATION

The reaction of selenobenzophenones with diazomethane, afforded the corresponding diarylethylenes and symmetrical olefins.The reaction with other diazoalkanes gave three different types of olefins.This reaction proceeded through selenadiazoline intermediates and retrocyclization was observed.Keywords: Selenobenzophenone; diazoalkane; selenadiazoline; episelenide; olefin.

An Efficient Synthesis of Selenocarbonyl Compounds by the Treatment of Carbonyl Compounds with Bis Selenide

An efficient synthesis of selenoaldehydes, selenoketones, and selenoamides was achieved by the treatment of carbonyl compounds with bis selenide.

Preparation and Cycloaddition Chemistry of Thio- and Selenocarbonyls Derived from Reaction of Elemental Sulfur and Selenium with Stabilized α-Halo Anions

Reaction of diethyl chloromalonate with Cs2CO3 in the presence of elemental S8 or Sen generates the corresponding diethyl thioxo- or selenoxomalonates which are subsequently trapped in situ with various 1,3-dienes.Similarly, the chalcogen carbonyls can be prepared from other halogenated compounds using DBU as the base and effectively trapped in Diels-Alder fashion with 2,3-dimethyl-1,3-butadiene (Table 2).

Regioselective synthesis of bicyclic diselenides by the reaction of phosphonium ylides with elemental selenium

Selenabicyclo[2.2.1]heptenes reacted with elemental selenium to produce unusual bicyclic diselenides in 30-40% yield. The reaction of phosphonium ylides with excess of elemental selenium also afforded bicyclic diselenides in good yields. The reactions might proceed via biradical intermediates.