Hydrogen Bromide → (6-Bromo-2-oxohexyl)(triphenyl)phosphanium bromide

HRID 616780

반응식

HRID 616780 반응식
[Br-:1].[O:2]1[CH2:7][CH2:6][CH2:5][CH2:4][C:3]1=[CH:8][P+:9]([C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.Br>>[Br-:1].[Br:1][CH2:7][CH2:6][CH2:5][CH2:4][C:3](=[O:2])[CH2:8][P+:9]([C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1

참가 물질

3

반응물 2

HCID 260Hydrogen BromideHCID 73676660[(tetrahydro-2H-pyran-2-ylidene)methyl]triphenylphosphonium bromide

생성물 1

HCID 20369022(6-Bromo-2-oxohexyl)(triphenyl)phosphanium bromide

실험 절차

A solution consisting of 1.6 parts of [(tetrahydro-2H-pyran-2-ylidene)methyl]triphenylphosphonium bromide in 25 parts by volume of 48% hydrobromic acid was heated at the reflux temperature for about 5 hours, then was stripped of solvent under reduced pressure affording the crude product as an amber colored oil. Trituration of that oily material with benzene, followed by evaporation of the benzene under an atmosphere of nitrogen afforded (6-bromo-2-oxohexyl)triphenylphosphonium bromide. This product exhibited 60 MHz nuclear magnetic resonance peaks in CDCl3 (deuterated chloroform) at about 100 cps (multiplet), 180 cps (multiplet), 200 cps (multiplet), 357 cps (doublet, J 12≃cps) in addition to the aromatic protons.

후처리

  1. temperaturewas heated at the reflux temperature for about 5 hours
  2. customaffording the crude product as an amber colored oil
  3. customTrituration of that oily material with benzene, followed by evaporation of the benzene under an atmosphere of nitrogen

출처 및 근거

ORD 기록
ord-92985b6c0829403ba1895ccfb2e8db51
출처 데이터셋
uspto-grants-1978_02
특허 번호
US04075407

연결된 노트

불러오는 중…