Cyclohexyl isocyanate → HCID 67423254, compound

HRID 2070063Notes

Reaction equation

HRID 2070063 reaction equation
[CH:1]1([N:7]=[C:8]=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.FC(F)(F)C([O-])=O.[CH2:17]([O:24][C:25]1[CH:30]=[C:29]([O:31][CH2:32][C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[CH:28]=[CH:27][C:26]=1[CH:39]1[CH2:43][CH2:42][NH2+:41][CH2:40]1)[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1>O1CCCC1.C(N(CC)C(C)C)(C)C>[CH:1]1([NH:7][C:8]([N:41]2[CH2:42][CH2:43][CH:39]([C:26]3[CH:27]=[CH:28][C:29]([O:31][CH2:32][C:33]4[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=4)=[CH:30][C:25]=3[O:24][CH2:17][C:18]3[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=3)[CH2:40]2)=[O:9])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

5

Reactant 2

HCID 18502Cyclohexyl isocyanateHCID 67423062HCID 67423062, compound

Product 1

HCID 67423254HCID 67423254, compoundYield 89.9%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 81531DiisopropylethylamineSolvent

Procedure

In a 10 ml round-bottomed flask, 0.25 g of 3-(2,4-bis(benzyloxy)phenyl)pyrrolidinium trifluoroacetate is dissolved in 5 ml of tetrahydrofuran in the presence of 0.25 ml of N,N-diisopropylethylamine. 0.1 g of cyclohexyl isocyanate is added and the reaction mixture is stirred for 30 minutes at ambient temperature. The reaction mixture is extracted with ethyl acetate and the organic phases are then combined and dried over magnesium sulphate. The residue is chromatographed on silica gel (7/3 heptane/ethyl acetate). 0.23 g of 3-(2,4-bis(benzyloxy)phenyl)pyrrolidine-1-carboxylic acid cyclohexylamide is obtained. Yield=66%.

Workup

  1. extractionThe reaction mixture is extracted with ethyl acetate
  2. dry with materialdried over magnesium sulphate
  3. customThe residue is chromatographed on silica gel (7/3 heptane/ethyl acetate)

Sources & evidence

ORD record
ord-ab50ea4256ce454891393305fb206f4e
Source dataset
uspto-grants-2012_10
Patent number
US08299259B2

Reaction notes

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