Methyl Isocyanate → Aldicarb [ISO]

HRID 231661Notes

Reaction equation

HRID 231661 reaction equation
[CH3:1][NH:2][C:3]([O:5][N:6]=[CH:7][C:8]([CH3:14])([S:10]([CH3:13])(=O)=O)[CH3:9])=[O:4].CC(SC)(C)C=NO.CN=C=O>>[CH3:1][NH:2][C:3]([O:5][N:6]=[CH:7][C:8]([CH3:14])([S:10][CH3:13])[CH3:9])=[O:4]

Participants

4

Reactant 3

HCID 12228Methyl IsocyanateHCID 154362-Methylthio-2-methylpropionaldoximeHCID 15438Aldicarb sulfone

Product 1

HCID 2086Aldicarb [ISO]

Procedure

This invention relates to a process for preparing 2-methyl-2-(methylsulfonyl) propionaldehyde O-(methylcarbamoyl) oxime (aldoxycarb) as an agueous wet cake by reacting 2-methyl-2-(methylthio) propionaldehyde oxime (aldicarb oxime) with methyl isocyanate in an aqueous medium to give 2-methyl-2-(methylthio) propionaldehyde O-(methylcarbamoyl) oxime (aldicarb) which is then oxidized in an agueous medium to give 2-methyl-2-(methylsulfonyl) propionaldehyde O-(methylcarbamoyl) oxime. This invention also relates to an agueous wet cake composition containing 2-methyl-2-(methylsulfonyl) propionaldehyde O-(methylcarbamoyl) oxime.

Sources & evidence

ORD record
ord-12546358e62141d68004764dc7ba4363
Source dataset
uspto-grants-1989_07
Patent number
US04847413

Reaction notes

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