Triplet photochemistry within zeolites through heavy atom effect, sensitization and light atom effect
作者:K Pitchumani、M Warrier、Lakshmi S Kaanumalle、V Ramamurthy
DOI:10.1016/s0040-4020(03)00865-2
日期:2003.7
rearrangement of barrelenes, oxa-di-π-methane rearrangement of β,γ-unsaturated ketones and photodimerization of acenaphthylene as probe reactions. The two methods, heavy cation effect and triplet sensitization, are well established solution techniques and these work well within zeolites. The Zimmerman rearrangement of dibenzobarrelene is enhanced even within Li+ and Na+ exchanged zeolites and these are
Decomposition of an oxodiazirine: free versus incarcerated within the cavities of two α-cyclodextrins
作者:Jean-Luc Mieusset、Bernhard Thiel、Michael Abraham、Mirjana Pačar、Udo H. Brinker
DOI:10.1016/j.tetlet.2012.12.008
日期:2013.2
photolyzing its α-cyclodextrin (6-Cy) complex, for which a Job plot indicated a 1:2 guest-to-host stoichiometry. Solid-phase photolysis of 1@(6-Cy)2 produced tricyclo[3.3.0.02,8]octan-3-one (3) and bicyclo[3.3.0]oct-5-en-3-one (4) in a 93:7 ratio. In contrast, gas-phase thermolysis of free 1 resulted in a 47:53 ratio of products 3 and 4. Thus, incarceration of a guest compound within a fitting microenvironment
Optisch reine Bicyclo(2.2.2)oct-5-en-2-one, Verfahren zu ihrer Herstellung und ihre Verwendung
申请人:Studiengesellschaft Kohle mbH
公开号:EP0053823A1
公开(公告)日:1982-06-16
Neue Bicylclo [2.2.2]oct-5-en-2-one der Formeln la und Ib in Form reiner Enantiomerer und Verfahren zu ihrer Herstellung werden beschrieben. Die Verbindungen werden zur Herstellung reiner Enantiomerer der Formel V durch sensibilisierte Photoreaktion oder von Verbindungen der Formel VI durch unsensibilisierte Photoreaktion verwendet.
描述了纯对映体形式的式 la 和 Ib 的新双环 [2.2.2]oct-5-en-2- 酮及其制备工艺。 这些化合物可通过敏化光反应制备式 V 的纯对映体,或通过非敏化光反应制备式 VI 的化合物。
Aliphatic semidiones. XV. 2,3-Semidiones derived from the bicyclo[n.1.0]alkanes
作者:Glen Allan Russell、John J. McDonnell、Philip R. Whittle、Richard S. Givens、Robert G. Keske