CAS 154477-55-1 | Methyl-4-4(4-hydroxy Diphenyl-methyl)-piperidine-1-oxobutyl-2-2-dimethyl Phenyl
Molecular Formula: C33H39NO4
Molecular Weight: 513.68
EINECS: 691-722-0
Purity: 97% Min.
Package: 1 g / 5 g / 25 g / 100 g / 1 kg / 25 kg
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Product Introduction
Introduction
Methyl-4-4(4-hydroxy diphenyl-methyl)-piperidine-1-oxobutyl-2-2-dimethyl phenyl is an intermediate for fexofenadine hydrochloride.
Synthesis of CAS 154477-55-1 | Methyl-4-4(4-hydroxy diphenyl-methyl)-piperidine-1-oxobutyl-2-2-dimethyl phenyl
ITEMS | SPECIFICATION |
Boiling point | 657.2°C |
pka | 13.32 |
Storage temp. | 2-8°C |
Density | 1.131 |
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Conditions
Stage #1: 4-<4-<4-(Hydroxydiphenylmethyl)-1-piperidinyl>-1-butynyl>-α,α-dimethylbenzeneacetic acid methyl ester With toluene-4-sulfonic acid; (triphenylphosphine)gold(I) chloride; silver trifluoromethanesulfonate In ethanol at 20℃; for 48h;
Stage #2: With sodium hydrogencarbonate In ethyl acetate pH=10 - 11;
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