Pyridine → Dodecylpyridinium bromide

HRID 1059472노트

반응식

HRID 1059472 반응식
[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Br:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19]>>[Br-:7].[CH2:19]([N+:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1)[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10][CH2:9][CH3:8]

참가 물질

3

반응물 2

HCID 1049PyridineHCID 89191-Bromododecane

생성물 1

HCID 66917Dodecylpyridinium bromide

실험 절차

Dodecyl pyridinium bromide (DDPB) was prepared in a stirred three neck flask (250 ml) fitted with a reflux condenser and a type j thermocouple probe. Heat was supplied by a Glascol mantel controlled with an IR2 digital temperature controller. In each test, 64.2 grams of alcohol, glycol or glycol ether, 20.7 grams of pyridine (0.26 mole) and 65.1 grams (0.26 mole) of 1-bromo dodecane were placed in the flask. The flask was heated with stirring to 85° C. An exotherm was encountered which caused the temperature to rise to about 100° C. The temperature controller was adjusted to 95° C. and this temperature was maintained throughout the preparation. At set times, samples were drawn and the bromide concentration was determined on a Mettler Model 25 autotitrator using the chloride specific ion silver nitrate method. The reaction was terminated when the bromide concentration reached 96% of the theoretical value.

후처리

  1. customfitted with a reflux condenser
  2. temperatureHeat
  3. temperatureThe flask was heated
  4. stirringwith stirring to 85° C
  5. customto rise to about 100° C
  6. customwas adjusted to 95° C.
  7. temperaturethis temperature was maintained throughout the preparation
  8. concentrationthe bromide concentration
  9. customThe reaction was terminated when
  10. concentrationthe bromide concentration

출처 및 근거

ORD 기록
ord-d00dbf2c1cb6494c9261b3c74c807242
출처 데이터셋
uspto-grants-2003_02
특허 번호
US06521028B1

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