4-Cyanobenzoic acid → 2-Cyanobenzoyl chloride

HRID 862423Notes

Reaction equation

HRID 862423 reaction equation
C([C:3]1[CH:11]=[CH:10][C:6]([C:7]([OH:9])=O)=[CH:5][CH:4]=1)#N.O1CCN(N=CC2C=CC(C([NH:26][C:27]3C=C4C(CCC(CC(OCCO)=O)C4)=CC=3)=O)=CC=2)CC1.O1CCN(N=CC2C=CC(C(NC3C=C4C(CCC(CC(OCCOC)=O)C4)=CC=3)=O)=CC=2)CC1.S(Cl)([Cl:83])=O.C(Cl)(=O)C(Cl)=O.P(Cl)(Cl)Cl.P(Cl)(Cl)(Cl)(Cl)Cl.P(Cl)(Cl)(Cl)=O>CN(C)C=O>[C:27]([C:5]1[CH:4]=[CH:3][CH:11]=[CH:10][C:6]=1[C:7]([Cl:83])=[O:9])#[N:26]

Participants

10

Procedure

In another process, p-cyanobenzoic acid or the compounds of formula (4) or (5) is reacted with thionyl chloride, oxalyl chloride, phosphorus trichloride, phosphorus pentachloride or phosphorus oxychloride in the presence of a catalytic amount of N,N-dimethylformamide to give o-cyanobenzoyl chloride or the compounds of formula (6) or (7). p-Cyanobenzoyl chloride or the compounds of formula (6) or (7) thus obtained can be reacted with the compounds of formula (2) or (3), or the compounds of formula (8) to give the desired compounds.

Sources & evidence

ORD record
ord-2632740d011b4b11a0deb2b93ca10774
Source dataset
uspto-grants-1998_02
Patent number
US05719145

Reaction notes

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