Effect of Addition of Methanol on Catalytic Activity of Polyethylene Glycols as Phase Transfer Catalyst

The dehydrohalogenation of 2-bromooctane in toluene (organic phase) by polyethylene glycols (phase transfer catalyst) was investigated in a batch reactor containing an aqueous solution of potassium hydroxide (aqueous phase). Reaction rates were increased by a factor of 126 at maximum by the addition...

Full description

Saved in:
Bibliographic Details
Published inKAGAKU KOGAKU RONBUNSHU Vol. 14; no. 4; pp. 539 - 542
Main Authors Saiki, Motohisa, Ido, Tadaatu, Goto, Shigeo
Format Journal Article
LanguageEnglish
Japanese
Published The Society of Chemical Engineers, Japan 1988
Subjects
Basic Catalyst
Basicity
Chemical Reaction
Dehydrohalogenation
Phase Transfer Catalyst
Polyethylene Glycol
Online AccessGet full text
ISSN0386-216X
1349-9203
DOI10.1252/kakoronbunshu.14.539

Cover

More Information
Summary:The dehydrohalogenation of 2-bromooctane in toluene (organic phase) by polyethylene glycols (phase transfer catalyst) was investigated in a batch reactor containing an aqueous solution of potassium hydroxide (aqueous phase). Reaction rates were increased by a factor of 126 at maximum by the addition of methanol. The base efficiency (moles of base per mole of catalyst) of polyethylene glycols (PEG) with molecular weights 3000 and 20, 000 exceeded unity and reached 12 at maximum by the addition of methanol.
ISSN:0386-216X
1349-9203
DOI:10.1252/kakoronbunshu.14.539