DERIVATIVES OF DECAHYDRO-CYCLOPROP[E]INDENE COMPOUNDS AND THEIR USE IN PERFUME COMPOSITIONS
申请人:Narula P.S. Anubhav
公开号:US20070117727A1
公开(公告)日:2007-05-24
The present invention is directed to novel substituted cyclopropane ethers compounds of the general formulae selected from the group consisting of
wherein R and R1 independently represent a hydrogen or a straight, branched, or cyclic hydrocarbon moiety consisting of less then 15 carbon atoms and containing single and/or double bonds.
Gold(I)-Catalyzed Access to Tetrahydropyran-4-ones from 4-(Alkoxyalkyl)oxy-1-butynes: Formal Catalytic Petasis-Ferrier Rearrangement
作者:Hyo Jin Bae、Wook Jeong、Ji Hyung Lee、Young Ho Rhee
DOI:10.1002/chem.201002918
日期:2011.2.1
Goldcycle redesigned: By utilizing the alkynophilic effect of gold(I) complexes, a new method for the synthesis of highlysubstituted cis‐2,6‐tetrahydropyranones was developed, which represents a catalytic surrogate of the Petasis–Ferrier rearrangement (see scheme). Of particular interest is the unique effect the phosphine ligand has on the diastereoselectivity of the alkyl groups at the 2‐ and 6‐positions
NICKEL-PHOSPHINE COMPLEX-CATALYZED GRIGNARD COUPLING OF β-BROMOVINYL ETHYL ETHER: A NEW TYPE OF FUNCTIONALIZED TWO-CARBON HOMOLOGATION OF GRIGNARD REAGENTS
作者:Kohei Tamao、Michio Zembayashi、Makoto Kumada
DOI:10.1246/cl.1976.1237
日期:1976.11.5
β-Bromovinyl ethyl ether smoothly couples with Grignardreagents in the presence of [Ni(dppp)Cl2] as a catalyst to give the corresponding alkylated and arylated vinylethers in good yields. This reaction provides a new one-step, functionalized two-carbon homologation of Grignardreagents.