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Title:
SPIROKETAL COMPOUND, ALKYNEDIOL COMPOUND, METHOD FOR PRODUCING SPIROLKETAL COMPOUND USING THE ALKYNEDIOL AND COMPOSITION USING THE SPIROLKETAL COMPOUND
Document Type and Number:
Japanese Patent JP2002128785
Kind Code:
A
Abstract:

To provide an optimum monomer capable of producing a polymer expressing a small volume change through polymerization and having hydrolysis resistance, to provide a raw material for the monomer, a method for producing the material and a composition by using the monomer.

This spiroketal compound is expressed by general formula (I) (wherein Ar expresses a substituted or nonsubstituted 6-20C aryl). Alkynediol is expressed by general formula (V) (wherein Ar expresses a substituted or nonsubstituted 6-20C aryl). The method for producing the spiroketal compound is to doubly cyclize the alkynediol compound. The objective composition contains the spirolketal compound.


Inventors:
FUKUCHI IWAO
ENDO TAKESHI
MITA FUMIO
Application Number:
JP2000000324857
Publication Date:
May 09, 2002
Filing Date:
October 25, 2000
Export Citation:
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Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
C07D303/14; C07C33/30; C07C33/48; C07D493/10; C08K5/151; C08L63/00; (IPC1-7): C07D493/10; C07C33/30; C07C33/48; C07D303/14; C08K5/151; C08L63/00
Domestic Patent References:
JP2002121275A2002-04-23
JP2002121275A2002-04-23
Foreign References:
Other References:
JPN6010055268, ALVAREZ,E. et al, "A unified stereochemical model for the polyepoxide cyclization route to marine polyether toxins", Tetrahedron Letters, 1991, Vol.32, No.20, pp.2253−2254
JPN6010055269, BALLINI,R. et al, "New and efficient synthesis of ω−nitro alcohols and spiroketals by chemo− and regioselective reduct", Tetrahedron, 1990, Vol.46, No.21, pp.7531−7538
JPN6010055270, TAKANO,S. et al, "Enantiocontrolled approach to natural products utilizing (S)−O−benzylglycidol as a common chiral pre", Heterocycles, 1989, Vol.29, No.3, pp.445−448
JPN6010055271, OCCHIATO,E.G. et al, "Synthesis of enantiopure 2,7−diaryl−1,6−dioxaspiro[4.4]nonanes via enantioselective reduction of pro", Tetrahedron: Asymmetry, 1996, Vol.7, No.7, pp.1929−1942
JPN6010055272, DANISHEFSKY,S.J. et al, "A new strategy for the synthesis of spiro ketals", Journal of Organic Chemistry, 1983, Vol.48, No.21, pp.3865−3866