Regiochemical Trends in Intramolecular [2 + 2] Photocycloadditions of 6-(prop-2-enyl)cyclohex-2-enones and 5-(prop-2-enyl)cyclopent-2-enones
作者:Giuliano Cruciani、Paul Margaretha
DOI:10.1002/hlca.19900730208
日期:1990.3.14
cyclization becomes low enough so that lumiketone rearrangement to bicyclohexanones 6 and 3-isopropylcyclopent-2-enones 9 becomes competitive. Enones 9 undergo consecutive intramolecular [2 + 2] photocycloaddition to tricyclo[3.2.1.03,6]octan-2-ones 7 and to tricyclo[3.2.1.03,6]octan-7-ones 8, compounds 8 only being formed when R Me.
CRUCIANI, GIULIANO;MARGARETHA, PAUL, HELV. ACTA ACTA., 73,(1990) N, C. 288-297
作者:CRUCIANI, GIULIANO、MARGARETHA, PAUL
DOI:——
日期:——
Oxidative Carbon−Carbon Bond Formation via Allyldimethylsilyl Enol Ethers
作者:Leah C. Konkol、Brian T. Jones、Regan J. Thomson
DOI:10.1021/ol902400q
日期:2009.12.3
A method for the oxidative alkylation of ketones through intramolecular allyl-group transfer within preformed allyldimethylsilyl enolethers is reported. A number of examples are detailed, including a study into the effects of resident sterocenters within cyclic enolethers.