Amine-treated thio-bis-(alkyl lactone acid) and thio-bis-(hydroc

Details Amine-treated thio-bis-(alkyl lactone acid) and thio-bis-(hydroc Amine-treated thio-bis-(alkyl lactone acid) and thio-bis-(hydroc

1985-11-27

1989-07-25

Springer, David B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

540470, 540467, 540465, C07D25702, C07D25900

Patent

active

048515248

ABSTRACT:
Thio-bis-(hydrocarbyl substituted diacid materials), such as thio-bis-(polyalkyl lactone acid) and/or their precursors, the adducts of sulfur chloride and unsaturated diacid materials, e.g., 4,8-bis-polyalkyl-4, 8-dichloro-6-thiaundecane-1,2,10,11-tetracarboxylic acid bis-anhydride and especially their dehydrochlorinated analogs, when treated with an amine preferably polyalkylene polyamines such as tetraethylene pentamine, directly or in the presence of a metal template reagent, yield aminated thio-bis-(alkyl lactone acid) and thio-bis-(hydrocarbyl diacid) materials or their metal complexes which can be characterized in part, as macrocyclic and/or macrocyclic-like amide and/or imide structures, are useful as stable additives in lubricating compositions, e.g., as varnish inhibiting dispersants and/or inhibitors for lubricating oils and fuels.

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