(E)-5,5-bis(3-fluorophenyl)-2,4-pentadienoic acid 4-nitrophenyl ester → (E)-5,5-bis(3-fluorophenyl)-N-[1,1-dimethyl-4-(3-pyridinyl)butyl]-2,4-pentadienamide

HRID 1110534Notes

Reaction equation

HRID 1110534 reaction equation
[N+](C1C=CC(O[C:11](=[O:30])/[CH:12]=[CH:13]/[CH:14]=[C:15]([C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([F:29])[CH:24]=2)[C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([F:22])[CH:17]=2)=CC=1)([O-])=O.[CH3:31][C:32]([CH3:43])([NH2:42])[CH2:33][CH2:34][CH2:35][C:36]1[CH:37]=[N:38][CH:39]=[CH:40][CH:41]=1>O1CCCC1>[F:29][C:25]1[CH:24]=[C:23]([C:15]([C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([F:22])[CH:17]=2)=[CH:14]/[CH:13]=[CH:12]/[C:11]([NH:42][C:32]([CH3:43])([CH3:31])[CH2:33][CH2:34][CH2:35][C:36]2[CH:37]=[N:38][CH:39]=[CH:40][CH:41]=2)=[O:30])[CH:28]=[CH:27][CH:26]=1

Participants

4

Reactant 2

HCID 14347311(E)-5,5-bis(3-fluorophenyl)-2,4-pentadienoic acid 4-nitrophenyl esterHCID 14547286alpha,alpha-Dimethyl-3-pyridinebutanamine

Product 1

HCID 14347331(E)-5,5-bis(3-fluorophenyl)-N-[1,1-dimethyl-4-(3-pyridinyl)butyl]-2,4-pentadienamide

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

As in Example 134, a solution of (E)-5,5-bis(3-fluorophenyl)-2,4-pentadienoic acid 4-nitrophenyl ester (1.63 g) and alpha,alpha-dimethyl-3-pyridinebutanamine (0.9 mL) in tetrahydrofuran (20 mL) was stirred for 29 hours at reflux and was then worked up in the usual manner. The crude amide was crystallized from ethyl acetate-hexane to furnish 1.6 g of (E)-5,5-bis(3-fluorophenyl)-N-[1,1-dimethyl-4-(3-pyridinyl)butyl]-2,4-pentadienamide mp 135°-136° C. Anal. Calculated for C28H28F2N2O : C, 75.32: H, 6.32; F, 8.51; N, 6.27 Found: C, 75.30; H, 6.49; F, 8.21; N, 6.30.

Workup

  1. temperatureat reflux
  2. customThe crude amide was crystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-48fad85aa9464fbdb5efc396ff862b75
Source dataset
uspto-grants-1990_12
Patent number
US04975438

Reaction notes

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