Piperidine → HCID 54239088, compound

HRID 372262Notes

Reaction equation

HRID 372262 reaction equation
[CH3:1][O:2][C:3]1[CH:15]=[CH:14][C:6]2=[N:7][N:8]([CH2:10][C:11](O)=O)[N:9]=[C:5]2[CH:4]=1.C([C:18]1[CH:23]=[CH:22][C:21]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)=[CH:20][CH:19]=1)=O.N1CCCCC1>CN(C)C=O>[CH3:1][O:2][C:3]1[CH:15]=[CH:14][C:6]2=[N:7][N:8]([CH:10]=[CH:11][C:27]3[CH:28]=[CH:29][C:24]([C:21]4[CH:22]=[CH:23][CH:18]=[CH:19][CH:20]=4)=[CH:25][CH:26]=3)[N:9]=[C:5]2[CH:4]=1

Participants

5

Reactant 3

HCID 8082PiperidineHCID 76689(1,1'-Biphenyl)-4-carboxaldehydeHCID 20351718HCID 20351718, compound

Product 1

HCID 54239088HCID 54239088, compoundYield 60.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

21 g of 5-methoxybenzotriazole-2-acetic acid, 20 g of 4-formyl-biphenyl and 5 ml of piperidine are melted at 165° to 175° C for 10 hours. 50 ml of dimethylformamide are then added and the product is allowed to crystallise. 20 g of 5-methoxy-2-[(p-phenyl)-styryl]-benzotriazole are obtained and after recrystallisation from methylglycol this melts at 176° C.

Workup

  1. customfor 10 hours
  2. customto crystallise

Sources & evidence

ORD record
ord-44e615b848b743ee8f53f37c337ca0eb
Source dataset
uspto-grants-1978_05
Patent number
US04090018

Reaction notes

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