81194-65-2

Upstream product

• 81205-69-8 2-{2-[2-({2-[2-(2-Hydroxy-ethoxy)-ethoxy]-ethoxy}-diphenyl-methoxy)-ethoxy]-ethoxy}-ethanol 
• 908093-98-1 diazodiphenylmethane 
• 112-27-6 2,2'-[1,2-ethanediylbis(oxy)]bisethanol 

Relevant academic research and scientific papers

A Novel Synthetic Method for Crown Ethers by a Redox Reaction Utilizing the Intermediate from Diphenyldiazomethane and 2,3-Dichloro-5,6-dicyanobenzoquinone

A synthetic method for the new crown ethers possessing a diphenylmethylene moiety by the reaction of diphenyldiazomethane (DDM) and 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) under the influence of oligoethylene glycols is described.The two types of crown ethers with 1:1 and 2:2 composition of diphenylmethylene/oligoethylene glycol moiety were obtained together with the noncyclic 1:2 compositional diols.The product distributions were dependent on the relative quantities and the manner of addition of the oligoethylene glycols.