Hydrochloric Acid → Isophthalamide

HRID 413612Notes

Reaction equation

HRID 413612 reaction equation
C1(N)C=CC=C([NH2:7])C=1.[C:9](Cl)(=[O:19])[C:10]1[CH:18]=[CH:17][CH:16]=C(C(Cl)=O)[CH:11]=1.Cl.[OH-].[Ca+2].[OH-].[Cl-].[Ca+2].[Cl-].C[N:29](C)[C:30](=[O:32])[CH3:31]>>[C:9]([NH2:7])(=[O:19])[C:10]1[CH:18]=[CH:17][CH:16]=[C:31]([C:30]([NH2:29])=[O:32])[CH:11]=1

Participants

7

Reactant 6

HCID 313Hydrochloric AcidHCID 7451Isophthaloyl chlorideHCID 7935M-PhenylenediamineHCID 31374DimethylacetamideHCID 5284359Calcium ChlorideHCID 6093208Calcium Hydroxide

Product 1

HCID 74445Isophthalamide

Procedure

A method in which a solution of polymetaphenyleneisophthalamide is prepared by subjecting metaphenylenediamine and isophthalic acid chloride to a low-temperature solution polymerization procedure in N,N-dimethylacetamide; hydrochloric acid contained, as a by-product, in the resultant polymer solution is neutralized with calcium hydroxide; the polymer solution containing the produced calcium chloride is subjected to a dry-spinning procedure to produce polymetaphenylenediamine isophthalamide filaments. (Japanese Examined Patent Publication No. 35-14,399, U.S. Pat. No. 3,360,595)

Workup

  1. customA method in which a solution of polymetaphenyleneisophthalamide is prepared

Sources & evidence

ORD record
ord-38a320f8bb04437f81ab4e86285f9e03
Source dataset
uspto-grants-2003_05
Patent number
US06569366B1

Reaction notes

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