Diisopropylethylamine → Methyl 3,3-dimethyl-2-(4-(picolinamido)phenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylate

HRID 2045577Notes

Reaction equation

HRID 2045577 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[C:17]([CH3:19])([CH3:18])[CH2:16][C:15]3[C:10](=[CH:11][CH:12]=[C:13]([C:20]([O:22][CH3:23])=[O:21])[CH:14]=3)[NH:9]2)=[CH:4][CH:3]=1.C(N(CC)C(C)C)(C)C.[N:33]1[CH:38]=[CH:37][CH:36]=[CH:35][C:34]=1[C:39](Cl)=[O:40]>ClCCl>[CH3:19][C:17]1([CH3:18])[CH2:16][C:15]2[C:10](=[CH:11][CH:12]=[C:13]([C:20]([O:22][CH3:23])=[O:21])[CH:14]=2)[NH:9][CH:8]1[C:5]1[CH:4]=[CH:3][C:2]([NH:1][C:39](=[O:40])[C:34]2[CH:35]=[CH:36][CH:37]=[CH:38][N:33]=2)=[CH:7][CH:6]=1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 135034Pyridine-2-carbonyl chlorideHCID 67441380Methyl 2-(4-aminophenyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoline-6-carboxylate

Product 1

HCID 67442750Methyl 3,3-dimethyl-2-(4-(picolinamido)phenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylateYield 52.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of methyl 2-(4-aminophenyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoline-6-carboxylate (100 mg, 0.32 mmol) and N,N-diisopropylethylamine (0.11 mL, 0.64 mmol) in dichloromethane (5 mL) was added freshly prepared picolinoyl chloride (56 mg, 0.35 mmol) with ice cooling. Upon completion of addition, the resultant deep blue solution was allowed to warm back to room temperature and stir overnight. LC-MS showed the reaction was complete. Solvent was removed in vacuo and the residue was purified by preparative Thin layer chromatography to afford 70 mg of methyl 3,3-dimethyl-2-(4-(picolinamido)phenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylate as a white solid. Yield: 52%. MS (ESI+APCI) M+1=416.20.

Workup

  1. additionUpon completion of addition
  2. customSolvent was removed in vacuo
  3. customthe residue was purified by preparative Thin layer chromatography

Sources & evidence

ORD record
ord-874e027f8f064219806e046e45240511
Source dataset
uspto-grants-2013_11
Patent number
US08586747B2

Reaction notes

Loading…