Acetic Acid → Ethyl cyanoacetate

HRID 979651Notes

Reaction equation

HRID 979651 reaction equation
NC1S[C:4]([CH:9]=[O:10])=[CH:5][C:6]=1[C:7]#[N:8].C(CC[N:15](CC)[C:16]1[CH:21]=[CH:20]C=C(C)C=1)#N.C(O)(=[O:27])C>>[C:16]([CH2:21][C:20]([O:10][CH2:9][CH3:4])=[O:27])#[N:15].[NH:8]1[CH2:9][CH2:4][CH2:5][CH2:6][CH2:7]1

Participants

5

Reactant 3

HCID 176Acetic AcidHCID 673633-(Ethyl(3-methylphenyl)amino)propanenitrileHCID 20135657HCID 20135657, compound

Product 2

HCID 7764Ethyl cyanoacetateHCID 8082Piperidine

Procedure

Using a method similar to that described in Example 1(a), 7.6 parts of 2-amino-3-cyano-5-formylthiophene were reacted with 9.7 parts of N-cyanoethyl-N-ethyl-m-toluidine to give 13 parts of the dye of the formula ##STR19## 3.8 parts of ethyl cyanoacetate, 1.5 parts of glacial acetic acid and 1.5 parts of piperidine were added to 6.0 parts of this dye in 45 parts by volume of dioxane, and the mixture was stirred for 16 hours at room temperature. Thereafter, the dye was precipitated by adding 50 parts of water and 50 parts of ice, the mixture was stirred for 1 hour and the product was filtered off under suction, washed neutral with water and dried to give 7 parts of the dye of the formula ##STR20## which dyes polyesters in fast dark blue hues.

Sources & evidence

ORD record
ord-55ffb52078fd4e6babcc87e64590e203
Source dataset
uspto-grants-1987_05
Patent number
US04668775

Reaction notes

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