2,3-Dichloro-6-methylquinoxaline → 6-Methyl-1,3-dithiolo-(4,5-b)-quinoxaline-2-ylidene-propanedinitrile

HRID 1589791Notes

Reaction equation

HRID 1589791 reaction equation
ClC1C(Cl)=NC2C(=CC=C([N+]([O-])=O)C=2)N=1.Cl[C:17]1[C:26](Cl)=[N:25][C:24]2[C:19](=[CH:20][CH:21]=[C:22]([CH3:28])[CH:23]=2)[N:18]=1.[K][S:30][C:31](=[C:34]([C:37]#[N:38])[C:35]#[N:36])[S:32][K]>>[CH3:28][C:22]1[CH:23]=[C:24]2[C:19](=[CH:20][CH:21]=1)[N:18]=[C:17]1[S:30][C:31](=[C:34]([C:37]#[N:38])[C:35]#[N:36])[S:32][C:26]1=[N:25]2

Participants

4

Reactant 3

HCID 5606412,3-Dichloro-6-methylquinoxalineHCID 6890902,3-Dichloro-6-nitroquinoxalineHCID 178511138HCID 178511138, compound

Product 1

HCID 197708446-Methyl-1,3-dithiolo-(4,5-b)-quinoxaline-2-ylidene-propanedinitrileYield 73%

Procedure

The process of Example 13 is followed except that the 2,3-dichloro-6-nitroquinoxaline is replaced by 3.0 g of 2,3-dichloro-6-methylquinoxaline and 3.84 g of the di(potassiomercapto)methylenemalononitrile is used. The recovered material is a yellow powder weighing 2.9 g with a calculated overall yield of 73 percent and has a melting point of 265° to 267° C.

Sources & evidence

ORD record
ord-32abaf8cfc5d4b648a6a47445c867375
Source dataset
uspto-grants-1993_04
Patent number
US05200409

Reaction notes

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