Asymmetric synthesis of a highly functionalized bicyclo[3.2.2]nonene derivative
作者:Toshiki Tabuchi、Daisuke Urabe、Masayuki Inoue
DOI:10.3762/bjoc.9.74
日期:——
The stereoselective Diels-Alder reaction between an optically active 1,4-dimethylcycloheptadiene and acrolein was effectively promoted by TBSOTf to produce a bicyclo[3.2.2]nonene derivative bearing two quaternary carbons. Seven additional transformations from the obtained bicycle delivered the C 2-symmetric bicyclo[3.3.2]decene derivative, a key intermediate in our synthetic study of ryanodine.
Maskierung von Mineralölgeruch und Beduftung von Mineralölen
申请人:Symrise GmbH & Co. KG
公开号:EP1884555A2
公开(公告)日:2008-02-06
Die Erfindung betrifft das Gebiet des Maskierens von Mineralölgeruch und das Beduften von Mineralölen. In diesem Zusammenhang betrifft die Erfindung eine Auswahl an besonders geeigneten Riechstoffen zum Maskieren eines Mineralölgeruchs und zum Beduften von Mineralölen. Ferner betrifft die Erfindung Additive sowie entsprechende beduftete Mineralöle selbst, insbesondere Kraftstoffe und Heiz- oder Schmieröle.
Masking of mineral oil odor and fragrancing of mineral oils
申请人:Finke Anja
公开号:US20080032913A1
公开(公告)日:2008-02-07
The invention relates to the field of masking mineral oil odor and the fragrancing of mineral oils. In this connection, the invention relates to a selection of particularly suitable odoriferous substances for masking a mineral oil odor and for fragrancing mineral oils. The invention furthermore relates to additives and to corresponding fragranced mineral oils themselves, in particular motor fuels and heating or lubricant oils.
Synthesis of (dl)-pentalenolactones E and F
作者:David E. Cane、Pulikkottil J. Thomas
DOI:10.1021/ja00330a044
日期:1984.9
Synthese a partir du glutarate de dimethyle via l'insertion intramoleculaire d'un α-acylcarbene dans une liaison C−H inactivee
通过 l'insertion intramoleculaire d'un α-acylcarbene dans une liaison C−H inactivee 合成 a partir du glutarate dedimethyle