Spirocyclic acetal compound and method of producing the...

Details Spirocyclic acetal compound and method of producing the... Spirocyclic acetal compound and method of producing the...

2007-02-01

2009-10-20

Andres, Janet L (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07605276

ABSTRACT:
A method of producing a spirocyclic acetal compound of formula (II), having subjecting a compound of formula (I) and pentaerythritol to dehydration condensation, in the presence of a solid acid catalyst; and the polymer having a repeating unit represented by formula (III), which is produced using the spirocyclic acetal compound of formula (II):wherein R1represents an alkyl, cycloalkyl or aryl group, Q represents a hydrogen atom or an acyl group, L represents a divalent linking group having at least one carbon atom, and n is 0 or 1.

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Jin et al., Synthetic Communications, vol. 29, No. 9, pp. 1601-1606, (1999).
M. Balog et al., Tetrahedron, vol. 60, pp. 4789, 4790 and 4795, (2004).
Clements et al., J. Org. Chem, vol. 24, pp. 1958-1961, (1959).
Zhang et al., J. Chem. Research (S), pp. 640-641, (1998).

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