Two-phase process for the preparation of azole and azoline disulfides
First Claim
1. A process for preparing a polysulfide of a thiol-substituted azole or azoline comprising the step of halogen-induced oxidative coupling of a 2-mercapto azole or azoline or the alkali or alkaline earth metal salt thereof with a hydrocarbon substituted C2 -C100 polysulfide reactant in a two-phase liquid reaction medium comprising a non-polar organic solvent phase and an aqueous phase.
0 Assignments
0 Petitions
Accused Products
Abstract
Azole and azoline disulfides useful as corrosion inhibitors and antiwear agents are prepared by the halogen-induced coupling of a thiol reactant e.g., hydrocarbyl mercaptans, with a metal azole thiolate, e.g. the potassium salt of 3,5-bis-mercapto 1,2,4-thiadiazole or 2,5-bis-mercapto 1,3,4 thiadiazole in a 2-phase reaction medium comprising a mixture of a hydrocarbon and water.
-
Citations
13 Claims
- 1. A process for preparing a polysulfide of a thiol-substituted azole or azoline comprising the step of halogen-induced oxidative coupling of a 2-mercapto azole or azoline or the alkali or alkaline earth metal salt thereof with a hydrocarbon substituted C2 -C100 polysulfide reactant in a two-phase liquid reaction medium comprising a non-polar organic solvent phase and an aqueous phase.
Specification