Some macrocyclic compounds and their preparation
OwnerAbraham Shanzer, Eduard Schwartzinventors
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Abstract
The present invention relates to novel macrocyclic carbonyl compounds of the macrocyclic carbamate and lactone type, to chiral macrocyclic structures, to macrocyclic urea compounds and to macrocyclic thiolactones and to a process for the preparation of same. The process of the invention comprises reacting a stannoxane, silazane or silathiane compound with an activated carbonyl compound in an organic solvent at moderate temperature.
Claims6
A process for the production of macrocyclic carbonyl compounds having 2-8 carbonyl groups and at least 4 carbonyl groups when the ring contains only oxygen hetero-atoms which comprises reacting a cyclic metolloid silazane compound and an isocyanate in an organic solvent to form a diurea derivative, said cyclic metalloid being devoid of functional groups apt to interact with the activated carbonyl derivative.
A process for the production of macrocyclic carbonyl compounds having 2-8 carbonyl groups and at least 4 carbonyl groups when the ring contains only oxygen hetero-atoms which comprises reacting a cyclic metalloid silazane compound with an acyl chloride in an organic solvent to form a polyamide, said cyclic metolloid being devoid of functional groups apt to interact with the activated carbonyl derivative.
A process for producing a product of the formula ##STR2## which comprises reacting 1,3-diethyl-2,2-dimethyl-1,1,3-diaza-2-silacyclopentane and 1,6-diisocyanato hexane in an organic solvent.
A process for the production of macrocylclic carbonyl compounds having at least 4 carbonyl groups of the formula ##STR3## wherein N is 1, 2, or 3 comprosing reacting a cyclic metalloid stannoxane derivative with propiolactone in an organic solvent, said cyclic metalloid derivative being devoid of functional groups apt to interact with the activated carbonyl derivatives.
A compound of the formula ##STR4##
A compound of the formula ##STR5## wherein n=1, 2, 3, 4, 5 or 6.
Dependencies are inferred from the claim text.