52774-25-1

Upstream product

• 91404-04-5 2,6-diphenyl-4H-selenopyran 
• 13586-29-3 2,6-diphenylthiopyrilium perchlorate 
• 536-74-3 phenylacetylene 
• 83258-48-4 (Z)-1-Ethoxy-1,5-diphenyl-pent-1-en-4-yn-3-one 
• 925-90-6 ethylmagnesium bromide 
• 109-94-4 formic acid ethyl ester 
• 15814-30-9 1,5-diphenyl-penta-1,4-diyn-3-one 
• 15814-32-1 1,5-diphenylpenta-1,4-diyn-3-ol 

Downstream Products

• 57026-60-5 diphenyl-2,6 selenopyrannethione-4 
• 83396-82-1 chlorure de chloro-4 diphenyl-2,6 selenopyrylium 
• 153280-07-0 4-methyl-2,6-di(phenyl)selenopyrylium hexafluorophosphate 
• 57026-52-5 Δ^4,4'-2,2',6,6'-tetraphenyl-4-(selenapyranyl)-4H-selenapyran 
• 79308-67-1 2,6,2',6'-Tetraphenyl-[4,4']biselenopyranylidene; compound with 2-(4-dicyanomethylene-cyclohexa-2,5-dienylidene)-malononitrile 
• 79308-67-1 bis(diphenyl-2,6 selenopyrannylidene)-4:4'-1,35 TCNQ 

Relevant academic research and scientific papers

Study of oxidation reactions of 4H-selenopyrans

The oxidation of 4H-4R-2,6-diphenylselenopyrans was studied.This reaction was found to depend on the presence of substituents at C(4) of the heterocycle and the reaction conditions.

SYNTHESE D'UNE NOUVELLE CLASSE DE DONNEURS: BIS(SELENOPYRANNYLIDENES)-4:4'(BSeP)

We report here the first synthetic method to reach biselenopyranylidenes derivatives from either the selenopyrylium ions or the corresponding selenopyranethiones.TCNQ and DDQ complexes are described.

A novel reaction of 2,4,6-triphenyl(thio)selenopyrylium salts leading to benzoyl(thio)selenophenes and 2,4,6-triphenyl(thio)selenopyrans

Thio- and selenopyrylium salts undergo simultaneous oxidation, leading to the corresponding benzoylselenophene or benzoylthiophene, and reduction reactions leading to 4H-selenopyran or 4H-thiopyran In the presence of water and triethylamine .

Chalcogenopyranones from disodium chalcogenide additions to 1,4- pentadiyn-3-ones. The role of enol ethers as intermediates

Enol ethers 9 are formed as a mixture of E- and Z-isomers from the addition of ethanol to 1,4-pentadiyn-3-ones 2 in sodium ethoxide/ethanol. The enol ethers react with disodium chalcogenides to give the corresponding 2,6- disubstituted chalcogenopyranones

Oxidation reactions of 4H-chalcogenopyrans

We have studied the oxidation of 4H-chalcogenopyrans and chalcogenopyrylium salts by lead tetraacetate. We have established that the major reaction products on oxidation of 2,6-diphenyl-4H-thiopyran and selenopyran are 2,6-diphenyl-4H-thio(seleno)pyran-4-

Conducteurs Organiques: Synthese et Caracterisation de Complexes a Transfert de Charge de Bis(Chalcogenopyrannylidenes)-4:4' Avec le Tetracyanoquinodimethane

2,2',6,6'-tetra(methyl and aryl)-4,4'-biselenopyranylidenes and 2,2',6,6'-tetra(p-tolyl)-4,4'-bitelluropyranylidene are organic ?-donors of great interest on account of their quasi-planar and centrosymmetric structure, their regular columnar plane to plan

Δ4,4'-4-CHALCOGENAPYRANYL-4H-CHALCOGENAPYRANS SYNTHESIS, ELECTROCHEMICAL OXIDATION, AND ESR INVESTIGATIONS OF RADICAL-CATION STATES

The O-, S-, Se- and Te-containing Δ4,4'-2,2',6,6'-tetramethyl-, -tetra-t-butyl- and -tetraphenyl-4-(chalcogenapyranyl)-4H-chalcogenapyrans were prepared from the corresponding chalcogenapyran-4-ones.The thia-, selena- and tellurapyran-4-ones we