Large scale, non-chromatographic purification of chromogenic cry

Details Large scale, non-chromatographic purification of chromogenic cry Large scale, non-chromatographic purification of chromogenic cry

1990-06-04

1991-11-12

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C07D27308

Patent

active

050649558

ABSTRACT:
A process is disclosed for the non-chromatographic purification of chromogenic cryptahemispherands of the following general formula (II) which are capable of selective binding of sodium ion in aqueous solution: ##STR1## wherein: R, same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl, aryl or benzyl;

REFERENCES:
patent: 4845212 (1989-07-01), Czech

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