95809-00-0Relevant articles and documents
Saturated cardanol betaine surface active agent and its preparation method and application
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Paragraph 0052-0054, (2018/02/04)
The invention discloses a saturated cardanol betaine surfactant. The saturated cardanol betaine surfactant of a specific structure is prepared from saturated cardanol through a Mannich reaction and a quaterisation reaction. The saturated cardanol betaine surfactant has good interfacial performance; an aqueous solution of the saturated cardanol betaine surfactant and alkane or crude oil can form low or ultra-low interfacial tension; so the saturated cardanol betaine surfactant has good application prospects in a plurality of fields like mineral flotation, industrial washing and tertiary oil recovery. The saturated cardanol betaine surfactant has a structure as shown in a formula I which is described in the specification.
ENHANCEMENT OF THE RATE OF MANNICH REACTIONS IN AQUEOUS MEDIA
Tychopoulos, V.,Tyman, J. H. P.
, p. 1401 - 1410 (2007/10/02)
The rate of Mannich reaction of phenols and of ketones with secondary amines is greatly increased in aqueous compared with alcoholic or hydrocarbon solvents.Two phase system are present and a phase transfer catalysis may be operative.With phenols and excess co-reactants the proucts are mono- or isomeric disubstituted dialkylaminomethyl derivatives dependent upon the reaction time.