Methyl Isocyanate → Trans-3-{[(methylamino)carbonyl]oxy}-4-(4-chlorophenoxy)-N,N-dimethyl-1-pyrrolidinecarboxamide

HRID 1262598Notes

Reaction equation

HRID 1262598 reaction equation
[Cl:1][C:2]1[CH:19]=[CH:18][C:5]([O:6][C@H:7]2[C@H:11]([OH:12])[CH2:10][N:9]([C:13]([N:15]([CH3:17])[CH3:16])=[O:14])[CH2:8]2)=[CH:4][CH:3]=1.[CH3:20][N:21]=[C:22]=[O:23]>C(Cl)Cl>[CH3:20][NH:21][C:22]([O:12][C@H:11]1[C@H:7]([O:6][C:5]2[CH:18]=[CH:19][C:2]([Cl:1])=[CH:3][CH:4]=2)[CH2:8][N:9]([C:13]([N:15]([CH3:17])[CH3:16])=[O:14])[CH2:10]1)=[O:23]

Participants

4

Reactant 2

HCID 12228Methyl IsocyanateHCID 13320214Trans-3-(4-chlorophenoxy)-4-hydroxy-N,N-dimethyl-1-pyrrolidinecarboxamide

Product 1

HCID 13320218Trans-3-{[(methylamino)carbonyl]oxy}-4-(4-chlorophenoxy)-N,N-dimethyl-1-pyrrolidinecarboxamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 1.0 g. (0.003 mole) of trans-3-(4-chlorophenoxy)-4-hydroxy-N,N-dimethyl-1-pyrrolidinecarboxamide and 1.0 g. (0.02 mole) of methylisocyanate in 20 ml. of methylene chloride was let stand at ambient temperature for 48 hr. The solution was concentrated to give an oil which crystallized upon standing. The solid was recrystallized from benzene-cyclohexane to yield 0.6 g. (50%) of white solid, m.p. 132°-134° C.

Workup

  1. concentrationThe solution was concentrated
  2. customto give an oil which
  3. customcrystallized
  4. customThe solid was recrystallized from benzene-cyclohexane
  5. customto yield 0.6 g

Sources & evidence

ORD record
ord-87023a7aba704f5f9665856df15adfa6
Source dataset
uspto-grants-1984_06
Patent number
US04452809

Reaction notes

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