Process for the preparation of chromogenic cryptahemispherands

Details Process for the preparation of chromogenic cryptahemispherands Process for the preparation of chromogenic cryptahemispherands

1988-08-17

1989-07-04

Bond, Robert T.

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

Organic compounds

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

C07D27308

Patent

active

048452122

ABSTRACT:
The invention relates to a process in which a variety of cryptahemispherands bearing a chromogenic group attached to the partially preorganized moiety may be synthesized. The procedure of the present invention allows preparation of preferred chromogenic cryptahemispherands of the general formula: ##STR1## wherein: R, is same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl, aryl, or benzyl;

REFERENCES:
Miyaura et al., "Synthetic Communications", vol. 11, No. 7, pp. 513-519 (1981).
March "Advanced Organic Chemistry" 3rd Edition, pp. 16-17 (1985).

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