Pyridine, 3-(4-aminobutyl)- → (Z)-5,5-bis(3-methoxyphenyl)-N-[4-(3-pyridinyl)-butyl]-2,4-pentadienamide

HRID 1110549Notes

Reaction equation

HRID 1110549 reaction equation
[N+](C1C=CC([O:10][C:11](=O)/[CH:12]=[CH:13]\[CH:14]=[C:15]([C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([O:30][CH3:31])[CH:25]=2)[C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([O:22][CH3:23])[CH:17]=2)=CC=1)([O-])=O.[N:33]1[CH:38]=[CH:37][CH:36]=[C:35]([CH2:39][CH2:40][CH2:41][CH2:42][NH2:43])[CH:34]=1.[N+](C1C=C(C(C2C=CC=C([N+]([O-])=O)C=2)=C/C=C/C(NCCCCC2C=NC=CC=2)=O)C=CC=1)([O-])=O>O1CCCC1>[CH3:23][O:22][C:18]1[CH:17]=[C:16]([C:15]([C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([O:30][CH3:31])[CH:25]=2)=[CH:14]/[CH:13]=[CH:12]\[C:11]([NH:43][CH2:42][CH2:41][CH2:40][CH2:39][C:35]2[CH:34]=[N:33][CH:38]=[CH:37][CH:36]=2)=[O:10])[CH:21]=[CH:20][CH:19]=1

Participants

5

Reactant 3

HCID 72927Pyridine, 3-(4-aminobutyl)-HCID 14347313(Z)-5,5-bis(3-methoxyphenyl)-2,4-pentadienoic acid 4-nitrophenyl esterHCID 14347344(E)-5,5-bis(3-nitrophenyl)-N-[4-(3-pyridinyl)butyl)-2,4-pentadienamide

Product 1

HCID 14347335(Z)-5,5-bis(3-methoxyphenyl)-N-[4-(3-pyridinyl)-butyl]-2,4-pentadienamideYield 39%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

As in Example 134, a solution of (Z)-5,5-bis(3-methoxyphenyl)-2,4-pentadienoic acid 4-nitrophenyl ester (1.2 g) and 3-pyridinebutanamine (0.42 g) in tetrahydrofuran (7 mL) was stirred at room temperature for 1 hour. The crude amide that had been isolated in the usual way, was contaminated with a minor amount of the (E)-isomer. The mixture was separated by HPLC (ethyl acetate) and the desired product was crystallized from ether (2x) to yield 0.48 g of (Z)-5,5-bis(3-methoxyphenyl)- N-[4-(3-pyridinyl)-butyl]-2,4-pentadienamide mp 69°-73° C. Anal. Calculated for C28H30N2O3 : C, 75.99; H, 6.83; N, 6.33 Found: C, 75.79; H, 6.70; N, 6.39.

Workup

  1. customThe crude amide that had been isolated in the usual way
  2. customThe mixture was separated by HPLC (ethyl acetate)
  3. customthe desired product was crystallized from ether (2x)

Sources & evidence

ORD record
ord-220143f3437d4f3a8bb1677f7f5a7e15
Source dataset
uspto-grants-1990_12
Patent number
US04975438

Reaction notes

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