Aliphatic allylic acetates were reduced to alkenes with hexacarbonylmolybdenum(0) in refluxing dioxane under nitrogen atmosphere. These reactions were accelerated by the addition of H2O. 1-Aryl- or 3-arylallyl acetates caused deacetoxylative allylic homocoupling under the same conditions.
A novel and efficient allylic alkylation reaction between π-activated ethers and allylsilane was realized under mild conditions through iron(III)-catalyzed C–O ether bond cleavage. The present protocol provides an attractive approach for the construction of sp3–sp3 C–C bonds and can be potentially applied for the selective reduction of benzyl and allyl ethers to their corresponding hydrocarbon compounds
A Novel Class of Tunable Zinc Reagents (RXZnCH<sub>2</sub>Y) for Efficient Cyclopropanation of Olefins
作者:Jon C. Lorenz、Jiang Long、Zhiqiang Yang、Song Xue、Yinong Xie、Yian Shi
DOI:10.1021/jo030312v
日期:2004.1.1
A class of zincreagents (RXZnCH2Y) generated with an appropriate organozinc is very effective for the cyclopropanation of olefins. The reactivity and selectivity of these reagents can be regulated by tuning the electronic and steric nature of the RX group on Zn. A reasonable level of enantioselectivity was obtained for the cyclopropanation of unfunctionalized olefins when a chiral (iodomethyl)zinc
PRIVACY DIMENSIONS: A CASE STUDY IN THE INTERIOR ARCHITECTURE DESIGN STUDIO
作者:O. OSMAN DEMIRBAS、HALIME DEMIRKAN
DOI:10.1006/jevp.1999.0148
日期:2000.3
conditions of a designstudio in the Department of InteriorArchitecture and Environmental Design at Bilkent University. The expectations and preferences of the interiorarchitecture students pertaining to the designstudio were analysed by considering the sex differences in patterns of privacy preferences and the results of this study are expected to be used as input for a new designstudio. Results showed
Dibromoindium(<scp>iii</scp>) cations as a π-Lewis acid: characterization of [IPr·InBr<sub>2</sub>][SbF<sub>6</sub>] and its catalytic activity towards alkynes and alkenes
[IPr[middle dot]InBr2][SbF6] (2) (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) has been synthesized, characterized in the solid state, and used as catalyst.