Acryloyl chloride → HCID 136983767, compound

HRID 64296Notes

Reaction equation

HRID 64296 reaction equation
[NH2:1][CH2:2][CH:3]1[N:8]2[N:9]=[C:10]([C:15]3[CH:20]=[CH:19][C:18]([O:21][C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)=[CH:17][CH:16]=3)[C:11]([C:12]([NH2:14])=[O:13])=[C:7]2[NH:6][CH2:5][CH2:4]1.[C:28](Cl)(=[O:31])[CH:29]=[CH2:30]>C(Cl)Cl.CCN(CC)CC>[C:28]([NH:1][CH2:2][CH:3]1[N:8]2[N:9]=[C:10]([C:15]3[CH:20]=[CH:19][C:18]([O:21][C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)=[CH:17][CH:16]=3)[C:11]([C:12]([NH2:14])=[O:13])=[C:7]2[NH:6][CH2:5][CH2:4]1)(=[O:31])[CH:29]=[CH2:30]

Participants

5

Reactant 2

HCID 13140Acryloyl chlorideHCID 1369280997-(Aminomethyl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide

Product 1

HCID 136983767HCID 136983767, compoundYield 28%

Reagents, catalysts & solvents 2

HCID 8471TriethylamineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 7-(aminomethyl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide (125 mg, 0.344 mmol) in 5 mL of DCM was added Et3N (four drops) and acryloyl chloride (46.5 mg, 0.52 mmol). After stirring at rt for 30 mins. The mixture was partitioned between water (10 mL) and DCM (5 mL). The organic layer was concentrated and purified by pre-TLC (DCM/MeOH=20/1) to give 40 mg (28%) of product. 1H NMR (400 MHz, DMSO-d6) δ 8.37 (t, J=6.0 Hz, 1H), 7.59 (d, J=8.8 Hz, 2H), 7.54-7.43 (m, 2H), 7.25 (t, J=7.6 Hz, 1H), 7.16-7.11 (m, 4H), 6.76 (s, 1H), 6.33 (dd, J=10.1, 17.0 Hz, 1H), 6.18 (dd, J=1.9, 17.0 Hz, 1H), 5.69 (dd, J=1.9, 10.1 Hz, 1H), 4.28-4.22 (m, 1H), 3.92-3.80 (m, 1H), 3.50-3.30 (m, 3H), 2.14-1.94 (m, 2H). MS (ESI) m/e [M+1]+ 417.9.

Workup

  1. customThe mixture was partitioned between water (10 mL) and DCM (5 mL)
  2. concentrationThe organic layer was concentrated
  3. custompurified by pre-TLC (DCM/MeOH=20/1)

Sources & evidence

ORD record
ord-68d81d2671e04ae68e47944ebc088e41
Source dataset
uspto-grants-2016_09
Patent number
US09447106B2

Reaction notes

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