71739-38-3

Upstream product

• 109-87-5 Dimethoxymethane 
• 74-85-1 ethene 
• 71-23-8 propan-1-ol 

Relevant academic research and scientific papers

Three Binary Azeotropic Systems for 1-(Methoxymethoxy)-propane, 1-(Ethoxymethoxy)-propane, and Methoxy(methoxymethoxy)methane with Three Alcohols at 101.33 kPa: Experimental Data, Correlation, and Purification

The isobaric vapor-liquid equilibrium (VLE) data for three binary systems of 1-(methoxymethoxy)-propane and ethanol, 1-(ethoxymethoxy)-propane and 1-butanol, methoxy(methoxymethoxy)methane and 1-propanol at 101.33 kPa were measured using an improved Rose still. Three minimum boiling azeotropes were found for three binary systems containing ethanol, 1-butanol, and 1-propanol for which the azeotropic temperature and composition are 349.35 K and 70.95 mol % (ethanol), 384.02 K and 36.02 mol % (1-butanol), 368.68 K and 69.26 mol % (1-propanol), at 101.33 kPa, respectively. The VLE measurements were correlated by the Van Laar, Wilson, and nonrandom two-liquid models, and the results showed that the measurements had a good correlation by using thethree models for the three binary systems, respectively. The measurements of these three binary systems were thermodynamic as checked by the Herington semiempirical method.

Radical telomerization of ethylene with 1,1-dialkoxyalkanes

The radical telomerization of ethylene with 1,1-dialkoxyalkanes, initiated by tert-butyl peroxide (140-150 deg C), was investigated.The main products are unsymmetrical linear acetals, esters and saturated hydrocarbons.The structure of the intermediate free radicals was studied by ESR spectroscopy.The values obtained for the partial chain transfer constants (Cn=0.2) characterize the 1,1-dialkoxyalkanes as telogens of medium activity.The telomerization of ethylene with 1,1-dimethoxyethane is accompanied by rearrangements with 1,5 and 1,9 migration of a hydrogen atom.