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Title Transcription
アゾキシベンゼン ノ ハンノウセイ ニカンスル ケンキュウ (ダイ1ポウ) : 2,2'-ジメチルアゾキシベンゼン ノ ワラッハ テンイ
Title Alternative
Reactivities of azoxybenzenes (I) : Wallach rearrangement of 2,2'-dimetlyl azoxybenzene
Authors
Abstract
 In this paper we authors studied on Wallach rearrangement reaction of 2,2'-dimethyl azoxybenzene (DMAB) using sulfuric acid, chlorosulfonic acid and some other weak acids as catalysts, and obtained the following results ;
(1) We could obtain 4-hydroxy-2,2'-dimethyl azobenzene as a rearrangement product from DMAB in 80% sulfuric acid, under the reaction temperature 80℃ and time 30 minutes. The yield of 64% obtained in this experiment was better than that of 31% at which Gore et al had obtained the product.
(2) In case where chlorosulfonic acid was used in the rearrangement, It is a contradictory results against Wallach rearrangement by ordinary acid catalysts. The yield of o-isomer in the reaction products was higher than that of p-isomer in rearrangement.
(3) We also tried Wallach rearrangement by weak acids for the first taime, and obtained p-isomer at yield of max. 38.8% with trichloroacetic acid in acetic anhydride.
Publisher
鳥取大学工学部
Content Type
Departmental Bulletin Paper
ISSN・ISBN
0385-8596
NCID
AN00174610
Journal Title
鳥取大学工学部研究報告
Current Journal Title
鳥取大学工学部研究報告
Volume
1
Issue
1
Start Page
45
End Page
49
Published Date
1970-12-20
Text Version
Publisher
Citation
鳥取大学工学部研究報告. 1970, 1(1), 45-49
Department
Faculty of Engineering/Graduate School of Engineering
Language
Japanese