1-Chloroethyl chloroformate → N-[4-(1,2,3,6-tetrahydro-4-pyridinyl)phenyl]-4'-(trifluoro-methyl)-[1,1'-biphenyl]-2-carboxamide

HRID 852458Notes

Reaction equation

HRID 852458 reaction equation
ClC(OC(Cl)C)=O.C1(C[N:15]2[CH2:20][CH:19]=[C:18]([C:21]3[CH:26]=[CH:25][C:24]([NH:27][C:28]([C:30]4[C:31]([C:36]5[CH:41]=[CH:40][C:39]([C:42]([F:45])([F:44])[F:43])=[CH:38][CH:37]=5)=[CH:32][CH:33]=[CH:34][CH:35]=4)=[O:29])=[CH:23][CH:22]=3)[CH2:17][CH2:16]2)C=CC=CC=1>ClCCCl>[NH:15]1[CH2:16][CH:17]=[C:18]([C:21]2[CH:22]=[CH:23][C:24]([NH:27][C:28]([C:30]3[C:31]([C:36]4[CH:37]=[CH:38][C:39]([C:42]([F:43])([F:44])[F:45])=[CH:40][CH:41]=4)=[CH:32][CH:33]=[CH:34][CH:35]=3)=[O:29])=[CH:25][CH:26]=2)[CH2:19][CH2:20]1

Participants

4

Reactant 2

HCID 5213051-Chloroethyl chloroformateHCID 22499387N-[4-[1,2,3,6-tetrahydro-1-(phenylmethyl)-4-pyridinyl]phenyl]-4'-(trifluoromethyl)-[1,1'-biphenyl]-2-carboxamide

Product 1

HCID 22499395N-[4-(1,2,3,6-tetrahydro-4-pyridinyl)phenyl]-4'-(trifluoro-methyl)-[1,1'-biphenyl]-2-carboxamideYield 126.2%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

1-Chloroethyl chloroformate (0.078 mol) was added dropwise to a stirring mixture of intermediate (20) (0.039 mol) in 1,2-dichloro-ethane (500 ml). The mixture was stirred for 30 minutes and then stirred and refluxed overnight. The solvent was evaporated. Methanol (500 ml) was added. The mixture was stirred and refluxed overnight. The solvent was evaporated. The residue was triturated in DIPE. The precipitate was filtered off and dried, yielding 20.8 g of N-[4-(1,2,3,6-tetrahydro-4-pyridinyl)phenyl]-4′-(trifluoro-methyl)-[1,1′-biphenyl]-2-carboxamide (intermediate 21).

Workup

  1. stirringstirred
  2. temperaturerefluxed overnight
  3. customThe solvent was evaporated
  4. additionMethanol (500 ml) was added
  5. stirringThe mixture was stirred
  6. temperaturerefluxed overnight
  7. customThe solvent was evaporated
  8. customThe residue was triturated in DIPE
  9. filtrationThe precipitate was filtered off
  10. customdried

Sources & evidence

ORD record
ord-a198bc86b6fe41e7a850da1020f04c9d
Source dataset
uspto-grants-2007_08
Patent number
US07253157B2

Reaction notes

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