Takacs, James M. published the artcileCatalytic iron-mediated ene carbocyclizations: formal [4+4]-ene reactions of triene esters, Formula: C15H15OP, the publication is Tetrahedron (1990), 46(16), 5507-22, database is CAplus.
2-Substituted 2,7,9-decatrienoates, e.g., I, undergo an iron-catalyzed carbocyclization to yield trans-disubstituted cyclopentanes, e.g., II, in moderate-to-good chem. yields. The cyclization products are formally the result of a [4+4]-ene reaction in which cis-propenyl and 2-acryloyl functionalities are introduced as appendages to the newly formed cyclopentane ring by the cyclization. Triene ester substrates bearing an alkyl substituent at the 4- or 6-positions cyclize with high 1,2-stereoinduction to yield trisubstituted cyclopentanes in which the relative stereochem. between three contiguous stereocenters is controlled.
Tetrahedron published new progress about 4141-48-4. 4141-48-4 belongs to catalysis-chemistry, auxiliary class Aryl phosphine ligand,Mono-phosphine Ligands, name is Allyldiphenylphosphine oxide, and the molecular formula is C15H19NO5, Formula: C15H15OP.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia