etherification


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Related to etherification: esterification

etherification

[ē‚thir·ə·fə′kā·shən]
(organic chemistry)
The process of making an ether from an alcohol.
References in periodicals archive ?
The cellulose was converted to CMC through carboxymethylation process using William Etherification technique in heterogeneous system.
Adams, "Multi-Purpose Catalytic Distillation Column and Etherification Process Using Same," U.
by etherification of corresponding 4-haloquinolines with phenols HOC6H3R1R2 in the presence of a catalytic amt.
They usually yield gasoline with light olefins in the C3/C4 range for alkylation and etherification.
It was expected to observe several side reactions as noted in the literature, in particular, the etherification and homopolymerization reactions at cure profiles extended beyond epoxy conversion of 40-50% [8].
We are extremely pleased with this alliance with CDTECH, a world leader in the licensing of etherification technologies such as MTBE and TAME," said J.
The etherification system recently developed by Nakano's group at Toyko University, employing finely powdered sodium hydroxide as base in dimethyl sulphoxide, was used by:
In order to investigate their potential applications as additives, we synthesized the allyl-terminated hyperbranched PAEKs (HBP-AL) via an etherification between HBP-OH and allyl bromide and incorporated HBP-AL into the bismaleimide (BMI) resins based on 4,4'-bismaleimideodiphenylmethane (BMDM, Chart 1) and 2,2'-diallylbisphenal A (DBA).
Higher degrees of hydrolysis result in a product with higher hydroxyl content and lower viscosity, whereas etherification (oligomerization) results in lower hydroxyl content and higher viscosity.
This latter reaction competes with etherification of secondary hydroxyl groups and main chain trans eslerification.
Mechanistically, the reaction proceeds from amine active hydrogen attach onto the oxirane, but as the reaction proceeds the active hydrogen is sterically hindered and etherification dominates.
The possible reason may be the etherification reaction of the samples at 180CC.