Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
260 457P, 260 458N, 260830TW, 521165, 528287, 528367, 548309, 548310, 548312, 548313, C08G 1838
Hydantoins of the formula ##STR1## wherein R.sub.1 is hydrogen or alkyl of 1 to 8 carbon atoms, R.sub.2 is ##STR2## R.sub.3 is alkyl of 1 to 8 carbon atoms, and X is a straight or branched chain alkylene of 1 to 4 carbon atoms or a straight or branched chain alkylene of 3 to 6 carbon atoms containing an internal carbamido group; or R.sub.1 and R.sub.2 together are Y where Y is a straight or branched chain alkylene of 4 to 8 carbon atoms having a pendant ##STR3## ARE PREPARED BY REACTING FIRST .alpha.,.beta.-UNSATURATED ALDEHYDES OR KETONES WITH ALKYL PHOSPHITES TO FORM A PHOSPHONATE ALDEHYDE OR KETONE FOLLOWED BY A CLASSICAL Bucherer hydantoin synthesis.
patent: 2381121 (1945-08-01), Ericks
patent: 2861079 (1958-11-01), Britton et al.
patent: 3629263 (1971-12-01), Batzer et al.
patent: 3821243 (1974-06-01), Habermeier et al.
patent: 3892765 (1975-07-01), Porret et al.
patent: 3920685 (1975-11-01), Porret et al.
patent: 3925406 (1975-12-01), Porret et al.
patent: 3946034 (1976-03-01), Porret et al.
patent: 3971813 (1976-07-01), Porret et al.
patent: 3978076 (1976-08-01), Porret et al.
Lyons, The Chemistry & Use of Wine Retardants, Wiley-Interscience, NY, 1970, pp. 20-24. Chem. Abstr. 69, 78116m, 1968.
Chem. Abstr. 47, 4837b, 1953.
Chem. Abstr. 52, 3713d, 1958.
Harvey, Tetrahedron 22, 1966, pp. 2561-2573.
Dawson et al., J. Am. Chem. Soc. 74, 1952, pp. 5312-5314.
Cotton et al., J. Am. Chem. Soc. 85, 1963, pp. 2402-2406.
Chem. Abstr. 50, 11230f, 1956.
Jacobson et al., J. Am. Chem. Soc. 79, 1957, pp.2608-2612.
Buchi et al., J. Am. Chem. Soc. 92, 1970, pp. 3126-3133.
Habermeier, Angew. Makromol. Chem. 35, 1974, pp. 9-25.
Chem. Abstr. 80, 121680q, 1974.
Gordon David A.
Hall Luther A. R.
Hall Luther A. R.
Welsh M. J.
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