- Organolipic substance
-
Described is the compound of the Formula (2R/S, 3R/S)-3-Methyl-4-[(E,1R/S,2R/S,6R/S,7R/S)tricyclo[5.2.1.02,6]dec-4-en-8-ylidene]butan-2-ol, wherein respectively independently from each other the following applies: (2R/S, 3R/S) means (2R,3R), (2R,3S), (2S,3R) or (2S,3S) and (E,1R/S,2R/S,6R/S,7R/S) means (E,1R,2R,6R,7R) or (E,1S,2S,6S,7S). This compound is excellent for use as a fragrance or flavor compound.
- -
-
-
- Intramolecular photoreactions of cyclopentenones and styrenes fixed in a rigid molecule
-
8- and 9-phenyltricyclo[5.2.1.02,6]deca-4,8-dien-3-ones were prepared and their photochemical behavior was examined. Although each of the compounds gave an intramolecular [2+2] cycloaddition product upon direct irradiation, it was found that details of the respective reaction pathways strikingly differ from one another according to orientation of the styrene and enone moieties.
- Ogino, Toshio,Wada, Fumio,Kaneko, Saiko
-
p. 6523 - 6526
(2007/10/02)
-
- A synthesis of hirsutene: a simple route via β-enolization
-
A simple sequence from dicyclopentadiene to the cis,anti,cis-tricyclopentanoid carbon skeleton of the hirsutanes is described.A key step employs a β-enolate rearrangement to generate the ring system having the desired stereochemistry.The route to the requisite ketone for this rearrangement utilizes efficient ring expansion via homoketonization.
- Dawson, Brian A.,Ghosh, Ashim K.,Jurlina, Jeffrey L.,Ragauskas, Arthur J.,Stothers, J. B.
-
p. 2521 - 2525
(2007/10/02)
-
- Homoenolisation: a Simple Route to Hirsutene
-
A sequence leading from dicyclopentadiene to the cis,anti,cis-tricyclopentane ring system of the hirsutanes is described in which the key step utilizes rearrangement by homoenolisation to generate the carbon skeleton with the requisite stereochemistry.
- Dawson, Brian A.,Ghosh, Ashim K.,Jurlina, Jeffrey L.,Stothers, J. B.
-
p. 204 - 205
(2007/10/02)
-