Methyl Isocyanate → Aldicarb [ISO]

HRID 231660

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

Reactant 3

HCID 12228Methyl Isocyanate

HCID 154362-Methylthio-2-methylpropionaldoxime

HCID 15438Aldicarb sulfone

Product 1

HCID 2086Aldicarb [ISO]

Procedure

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

Sources & evidence

ORD record: ord-21d0d3dd0647439c93e9c94a2ebda738
Source dataset: uspto-grants-1989_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04847413

Linked notes

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