C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/251
C07D 239/04 (2006.01) C10L 1/232 (2006.01) C10M 133/40 (2006.01)
Patent
CA 2019047
Case EI-5918-A HEXAHYDROPYRIMIDINE DERIVATIVES Abstract of the Disclosure When a phenol having substituents in at least the 2- and 4-posi- tions but having a hydrogen atom in the 6-position, or a phenol having substituents in at least the 2- and 6-positions but having a hydrogen atom in the 4-position is reacted with formaldehyde and 1,3-propanediamine, a unique insertion-condensation reaction occurs whereby the product is a hexahydropyrimidine derivative which may be represented by the general formula Image (I) wherein R1 is (i) a 2-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions or (ii) a 4-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions: and R2 is (i) a 2-hydroxybenzyl group having an inert substitutent (preferably a hydrocarbyl substituent) in at least the 3- and-5-positions or (ii) a 4-hydroxybenzyl group having an inert substituent (preferably a hydrocarbyl substituent) in at least the 3- and 5-positions or (iii) a hydrogen atom. Uses for such compounds include their use as antioxidants and stabilizers for various substrates, such as fuels, lubricants, and functional fluids.
Bostick John G.
Cunningham Lawrence J.
Hanlon John V.
Malfer Dennis J.
Bostick John G.
Cunningham Lawrence J.
Ethyl Petroleum Additives Inc.
Hanlon John V.
Macrae & Co.
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