Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1992-03-12
1994-03-29
Tsang, Cecilia
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
526204, 526206, 523116, 26099811, C07D32110
Patent
active
052986314
ABSTRACT:
An asymmetric spiroorthocarbonate compound having one exomethylene group and represented by the following general formula (1) ##STR1## wherein A represents a group selected from the group consisting of: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represents a hydrogen atom, a lower alkyl group having not more than 8 carbon atoms, an alkoxy group, a halogen group, a nitro group, a cyano group, an amino group, an amide group, a hydroxyl group or an alkyl ester group having not more than 20 carbon atoms; and R.sup.5, R.sup.6, R.sup.7 and R.sup.8, R.sup.9 through R.sup.14, R.sup.15 through R.sup.22, R.sup.23 through R.sup.28 and R.sup.29 through R.sup.36 each represents a hydrogen atom or a lower alkyl group having not more than 8 carbon atoms; and copolymers containing units therefrom.
REFERENCES:
patent: 4089763 (1978-05-01), Dart et al.
patent: 4110184 (1978-08-01), Dart et al.
Sanda et al., Chem. Abst. 118-102888t (1993).
Journal of Polymer Science, Polymer Letters Edition, vol. 13, 1975, pp. 193-195, T. Endo, et al., "Radical Ring-Opening Polymerization of 3,9-Dimethylene-1,5,7,11-Tetraoxaspiro-(5,5)Undecane".
Journal of Polymer Science, Part A: Polymer Chemistry, vol. 27, No. 4, Mar. 1989, pp. 1415-1418, H. Tagoshi, et al., "Radical Polymerization of Unsaturated Spiroorthocarbonate".
Chemical Abstracts, vol. 108, No. 20, May 16, 1988, No. 168067z, T. Takata, et al., "New Aspect of Cationic Ring-Opening Polymerization of Seven-Membered Spiroorthocarbonates: Synthesis and . . . ".
Chemical Abstracts, vol. 110, No. 19, May 8, 1989, No. 173203m, K. No, et al., "The Synthesis of Spiro Orthocarbonates".
Journal of Polymer Science, Polymer Chemistry Edition, vol. 25, No. 10, pp. 2925-2929, Oct., 1987, T. Endo, et al., "Preparation of Polymerization of Spiroorthocarbonate Containing Distyryl Structure".
Endo Takeshi
Sanda Fumio
Takata Toshikazu
Yamauchi Junichi
Kuraray Co. Ltd.
Tsang Cecilia
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