4226-36-2Relevant articles and documents
PROCESS FOR PREPARING BISPHENOL
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Page/Page column 26-27, (2011/12/12)
Provided is a process for producing a bisphenol compound stably at a high conversion and with high selectivity over a long period. A process for producing a bisphenol compound by feeding a phenol compound and a carbonyl compound continuously to a reactor packed with an acid catalyst, characterized in that the acid catalyst is a sulfonic-acid-form cation-exchange resin in which part of the sulfo groups have been modified with at least any one of 2-pyridylalkanethiol compounds and 3-pyridylalkanethiol compounds.
Piperidine derivative and therapeutic and preventive agents for arrhythmia containing same
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, (2008/06/13)
A piperidine compound has the generic formula and is useful to treat arrhythmia. STR1 in which R1 is a lower alkyl and W is: STR2 X is --S--, --SO-- or --SO2 --, R2 is hydrogen or --(CH2)n --Y, n is a