97938-50-6Relevant academic research and scientific papers
Synthesis of cyclopentanone derivatives with polystyrene-supported cyclopentadienyl rhodium catalysts
Dygutsch, Dirk P.,Eilbracht, Peter
, p. 5461 - 5468 (1996)
An efficient and reusable polystyrene-supported ν5-cyclopentadienyl rhodium catalyst is prepared and applied to the synthesis of substituted cyclopentanones either via hydrocarbonylative cyclization starting from 1,4-dienes or from allyl vinyl
Hydroformylation reaction of alkylidenecyclopropane derivatives: A new pathway for the formation of acyclic aldehydes containing quaternary stereogenic carbons
Simaan, Samah,Marek, Ilan
supporting information; experimental part, p. 4066 - 4067 (2010/05/01)
Figure Presented The rhodium-catalyzed hydroformylation reaction of methylene- and alkylidenecyclopropane derivatives proceeds under mild conditions to lead to the exclusive formation of linear aldehydes and the stereointegrity of the quaternary carbon center remains unaffected in the process. Copyright
The synthesis and characterization of 3,3-disubstituted pent-4-enals and their 2,2-(trimethylendithio)pent-4-enal precursors, including the X-ray crystal structure of (R)-3-ethyl-3-phenyl-2,2-(trimethylenedithio)pent-4-enal
Young, Charles G.,James, Brian R.,Rettig, Steven J.
, p. 1035 - 1040 (2007/10/02)
A variety of 3,3-disubstituted pent-4-enals (5a, R=Me, R'=Et; 5b, R=Me, R'=Ph; 5c, R=Et, R'=Ph) has been prepared by the Raney nickel desulfurization of the corresponding 3,3-disubstituted 2,2-(trimethylenedithio)pent-4-enal precursors 4a-4c.The precursor compounds were prepared by the alkylation of 2-formyl-1,3-dithiane with the appropriate 3,3-disubstituted allylic bromide.The new compounds have been characterized by elemental analysis, infrared and nmr spectroscopy, and mass spectrometry.The crystal and molecular structure of (R)-4c has also been determined by X-ray crystallography.At temperatures of ca. 130 deg C, compounds 4a-4c undergo intramolecular rearrangement to form the trisubstituted alkenes 6a-6c, which have also been characterized by the present study.
