Phosphorus tribromide → 1-(Bromomethyl)-4-(dodecyloxy)benzene

HRID 1650643

반응식

HRID 1650643 반응식
[CH2:1]([O:13][C:14]1[CH:22]=[CH:21][C:17]([C:18](O)=O)=[CH:16][CH:15]=1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12].[H-].[H-].[H-].[H-].[Li+].[Al+3].C(OC1C=CC(CO)=CC=1)CCCCCCCCCCC.P(Br)(Br)[Br:51]>>[CH2:1]([O:13][C:14]1[CH:22]=[CH:21][C:17]([CH2:18][Br:51])=[CH:16][CH:15]=1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12]

참가 물질

5

실험 절차

According to customary procedures, 4-dodecyloxybenzoic acid was reduced with LiAlH4 and the formed 4-dodecyloxybenzyl alcohol was brominated with phosphorus tribromide to obtain 4-dodecyloxybenzyl bromide. Then, 2.0 g of the so-obtained compound was reacted with 1.0 g of p-acetoxyphenol in the presence of NaH in dimethylformamide to obtain 1.2 g of 4-dodecyloxybenzyl(4-acetoxyphenyl) ether. The so-obtained compounds was dissolved in a liquid mixture of tetrahydrofuran and an equimolar amount of 1N LiOH was added to the solution to remove the acetyl group, and post treatments were carried out according to customary procedures to obtain 1.0 g of 4-dodecyloxybenzyl(4-hydroxyphenyl) ether.

출처 및 근거

ORD 기록
ord-1fd78818d481421fa0a10518d412dee5
출처 데이터셋
uspto-grants-1990_05
특허 번호
US04925591

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