Conclusions
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1.
Ketone polycondensation occurs in a system containing H3PW12O40 and the ketone at room temperature. Simple condensation products are formed in the initial stage of this process. The starting reagents and intermediates are activated by the formation of protonated complexes.
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2.
The solid product of acetone polycondensation and the oily products of the polycondensation of methyl ethyl ketone were isolated and some of their structural and thermal characteristics were determined.
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Literature cited
V. A. Kargin, V. A. Kabanov, V. P. Zubov, and I. M. Papisov, Dokl. Akad. Nauk SSSR,134, No. 5, 1098 (1960).
V. A. Kargin, V. A. Kabanov, V. P. Zubov, et al., Dokl. Akad. Nauk SSSR,140, No. 1, 122 (1961).
V. F. Chuvaev, A. I. Gasanov, and V. I. Spitsyn, USSR Inventor's Certificate No. 550, 373; Byull. Izobret., No. 10 (1977).
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 731–733, March, 1989.
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Chuvaev, V.F., Yaroslavtseva, E.M. Polycondensation of ketones catalyzed by 12-phosphotungstic acid. Russ Chem Bull 38, 657–659 (1989). https://doi.org/10.1007/BF00958076
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DOI: https://doi.org/10.1007/BF00958076