Method of preparing ortho esters and 1.1-dialkoxycycloalkanes

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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558 7, C07C 4332

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active

054018854

ABSTRACT:
Ortho esters of the structure ##STR1## wherein R.sub.1 and R.sub.2 are different or the same alkyl moieties and can be a saturated, unsaturated, branched, unbranched or cyclic alkyl moiety of 1-3 carbon atoms, are prepared by first anhydrously reacting hydrogen cyanide or a hydrogen cyanide derivative with a secondary alkanol and hydrogen chloride in the presence of an inert organic solvent. Upon the formation of the resulting imino ether hydrochloride, more secondary alkanol is added to form the ortho esters (I). 1,1-Dialkoxycycloalkanes of the structure ##STR2## wherein R.sub.1 and R.sub.2 correspond to R.sub.1 and R.sub.2 of structure (I), and n is an integer from 4 to 9, are prepared by reacting with the imino ether hydrochloride more secondary alkanol and a cycloalkanone having 5 to 10 carbon atoms.

REFERENCES:
patent: 2527494 (1950-10-01), Copenhaver
patent: 2567927 (1951-09-01), Erickson
patent: 2786872 (1957-03-01), Claus
patent: 3121751 (1964-07-01), Kesslin et al.
patent: 3354100 (1967-11-01), Kunyla
patent: 3641164 (1972-02-01), Sennewald
patent: 3644423 (1972-02-01), Roswell et al.
patent: 4182910 (1980-01-01), Schmidt et al.
patent: 4226790 (1980-10-01), Walker
patent: 4304767 (1981-12-01), Heller et al.
patent: 4785012 (1988-11-01), Crews et al.
McElvain et al; J. Am. Chem. Soc. 75, 3993-3396 (1975).

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