نتایج جستجو برای: fluorine substituted hydroxyapatite
تعداد نتایج: 56050 فیلتر نتایج به سال:
The synthesis of a series of α-trifluoromethylcyclohexanols and analogous trimethylsilyl ethers by addition of the Ruppert-Prakash reagent to substituted cyclohexanones is presented. A method for the assignment of configuration of such compounds, of related α-trifluoromethylcyclohexylamines and of quaternary trifluoromethyl-substituted carbons is described based on the determination of the (3)J...
This paper describes novel and innovative amorphous calcium magnesium fluoride phosphate (ACMFP) core-shell microparticles that may be applied in preventive dentistry for the prevention of caries treatment dentin hypersensitivity. The particles can synthesized with varied content, up to approximately 6 wt%, without any observable differences morphology or crystallinity. Fluoride release from is...
Asymmetric Michael additions of 1,3-dicarbonyl compounds to N-substituted maleimides were carried out using primary amine-(thio)phosphoramide bifunctional chiral organocatalysts derived from optically pure C2-symmetric 1,2-diamines. The addition ethyl 2-fluoroacetoacetate the 1,2-diphenylethane-1,2-diamine thiophosphoramide catalyst afforded various succinimides substituted with fluorine bearin...
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