1450722-43-6

Basic information

• Product Name: 2,4-bis-[4-(2,6-diphenyl-pyran-4-ylidenemethyl)-phenylethynyl]-pyrimidine
• Synonyms: 2,4-bis-[4-(2,6-diphenyl-pyran-4-ylidenemethyl)-phenylethynyl]-pyrimidine
• CAS NO: 1450722-43-6
• Molecular Weight: 768.914
• Mol File: 1450722-43-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,4-bis-[4-(2,6-diphenyl-pyran-4-ylidenemethyl)-phenylethynyl]-pyrimidine(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-bis-[4-(2,6-diphenyl-pyran-4-ylidenemethyl)-phenylethynyl]-pyrimidine(1450722-43-6)
• EPA Substance Registry System: 2,4-bis-[4-(2,6-diphenyl-pyran-4-ylidenemethyl)-phenylethynyl]-pyrimidine(1450722-43-6)

Safety Data

• Hazardous Substances Data: 1450722-43-6(Hazardous Substances Data)

Upstream product

• 1450722-32-3 4-[(4-ethynyl-benzylidene)]-2,6-diphenyl-4H-pyran 
• 262353-34-4 2,4‐diiodopyrimidine 
• 1450722-31-2 [4-(2,6-diphenyl-pyran-4-ylidenemethyl)-phenylethynyl]-trimethyl-silane 

Relevant articles and documents

Methylenepyran based dipolar and quadrupolar dyes: Synthesis, electrochemical and photochemical properties

This paper presents the synthesis of a series of push-pull and quadrupolar π-conjugated structures incorporating pro-aromatic methylenepyran electron-donor groups and various electron-attracting groups. Some of the methylenepyran derivatives were oxidized by I2 to give, after reduction by Na2S2O3, bismethylenepyran compounds via successive steps. The electrochemical redox properties of methylenepyrans 5-9 and extended bismethylenepyrans 10, 14, and 15 determined by cyclic voltammetry indicate the formation of redox bistable systems with high bi-stability. Oxidation of the dimers obtained from 5 to 9 was also described. All compounds are colored and slightly fluorescent (except some bismethylenepyran derivatives). Some compound second-order nonlinear optical properties were investigated, and large positive values of μβ were obtained. A positive dimer effect was also observed for bispyran derivatives.