Benzene → Dimethyldiphenylmethane

HRID 2081815

반응식

HRID 2081815 반응식
Cl[C:2]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)([CH3:4])[CH3:3].[Cl-].[Al+3].[Cl-].[Cl-].C(=O)([O-])[O-].[K+].[K+].[CH:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1>>[C:21]1([C:2]([C:5]2[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=2)([CH3:4])[CH3:3])[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1

참가 물질

5

반응물 4

HCID 241Benzene2회HCID 11430Potassium CarbonateHCID 70281(1-Chloro-1-methylethyl)benzeneHCID 6451240Aluminum(III) Chloride

생성물 1

HCID 13065Dimethyldiphenylmethane

실험 절차

541 g of 2-chloro-2-phenylpropane (3.5 mol) were added dropwise at 5° C. with stirring to a suspension of 35 g of clean pulverised aluminium chloride in 3.5 1 of dry benzene in the course of 5 h, and the mixture was kept at 5° C. for a further 15 min. and then poured onto ice. The benzene phase was neutralised with potassium carbonate after separating off the aqueous phase, dried and freed from excess benzene. 650 g of crude product were obtained, which was fractionally distilled through a column about 100 cm long. 527 g (78% of the theoretical yield) of 2,2-diphenylpropane passed over at 152°-160° C. and 20 mbar.

후처리

  1. additionpoured onto ice
  2. customafter separating off the aqueous phase
  3. customdried
  4. custom650 g of crude product were obtained
  5. distillationwhich was fractionally distilled through a column about 100 cm long

출처 및 근거

ORD 기록
ord-193197b993104ef3819548ba8c81bd21
출처 데이터셋
uspto-grants-1993_02
특허 번호
US05185467

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