The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 1990
Filed:
Mar. 06, 1989
Bronislaw P Czech, Peekskill, NY (US);
Technicon Instruments Corporation, Tarrytown, NY (US);
Abstract
A process is disclosed for synthesizing large quantities of a compound of formula I ##STR1## wherein a solution of a compound of formula II ##STR2## is mixed with a solution of a compound of formula III ##STR3## under suitable process conditions, and wherein A, same or different, is N--R, O, S, CRR' or P(O)R, and R and R' are hydrogen, alkyl, alkylidene, aryl, tosyl, allyl or benzyl, and B is O. Compounds of formula I may be reduced to form an azacorand of formula IV ##STR4## wherein K and L, same or different, are N--R, O, S, CRR', or P(O)R, and R and R' are hydrogen, alkyl, alkylidene, aryl, tosyl, allyl or benzyl. Also disclosed in a compound of formula IV synthesized in accordance with the above procedure wherein K and L are not both O or S.