- PROCESS FOR PRODUCING HIGH PURITY EXO-ALKENYLNORBORNENE
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Embodiments of the present invention are directed generally to methods for producing high purity exo-alkenylnorbornenes from a mixture of conformational isomers thereof.
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Page/Page column 17-20
(2009/07/02)
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- NEW POSSIBILITIES FOR CONTROL OF THE TRANSANNULAR CYCLIZATION OF 1,5-DIENES IN THE RITTER REACTION AS ILLUSTRATED BY METHYL-CIS-BICYCLONONA-3,7-DIENES
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In the Ritter reaction 3-methyl and 3,4-dimethyl-cis-bicyclonona-3,7-dienes are converted either exclusively into acetylamines having the initial structure or into transannular cyclization products of the tricyclo3,7>nonane (brex
- Nigmatova, V. B.,Andreev, V. A.,Pekhk, T. I.,Belikova, N. A.,Bobyleva, A. A.,et al.
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p. 2213 - 2223
(2007/10/02)
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- PREPARATION OF 7-METHYL-7-VINYLBICYCLOHEPT-2-ENE VIA CYCLOBUTANONE REDUCTION
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A cyclobutanone to cyclobutane conversion has been performed on 7-methyl-7-vinylbicyclohept-2-en-6-one by low-temperature (25 deg C) Wolff-Kishner reduction of the hydrazone derivative.Upon heating, the exo-vinyl epimer affords predominantly cis-6-methyl-4,7,8,9-tetrahydroindene.
- Burkey, Jeffrey D.,Leber, Phyllis A.,Silverman, Lisa S.
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p. 1363 - 1370
(2007/10/02)
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- TRANSANNULAR CYCLIZATION OF 3-METHYL-cis-BICYCLONONA-2,7-DIENE AND 3-METHYL- AND 3,4-DIMETHYL-cis-BICYCLONONA-3,7-DIENES. SYNTHESIS OF 5-SUBSTITUTED BREXANES
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The reaction of formic acid and acetic acid with 3-methyl-cis-bicyclonona-2,7-diene, 3-methyl- and 3,4-dimethyl-cis-bicyclonona-3,7-dienes, and 3-methyl-cis-bicyclonon-7-en-3-ol leads to the exclusive formation of esters of 1-methyl- or 1,9-dimethyl-exo-brexan-5-ol with yields of 80-90percent.The reaction can be used as a convenient preparative method for the synthesis of 5-substituted brexanes.
- Anfilogova, S. N.,Nigmatova, V. B.,Pekhk, T. I.,Belikova, N. A.,Koptev, D. A.
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p. 1708 - 1713
(2007/10/02)
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