Takacs, James M. published the artcileCatalytic iron-mediated ene carbocyclizations of trienes: enantioselective synthesis of the iridoid monoterpenes (-)-mitsugashiwalactone and (+)-isoiridomyrmecin, SDS of cas: 4141-48-4, the publication is Tetrahedron Letters (1992), 33(3), 317-20, database is CAplus.
The iron-catalyzed cycloisomerization of a chiral (2E,7E)-2,7,9-decatriene derivative e.g. I containing an Me substituent adjacent to the 1,3-diene subunit proceeds with high levels of 1,2-stereoinduction relative to the resident Me-containing stereocenter. The stereochem. of the chiral cyclopentane product II is proven by conversion to (-)-mitsugashiwalactone (III) and to (+)-isoiridomyrmecin (IV).
Tetrahedron Letters 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 C14H14N2O2, SDS of cas: 4141-48-4.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia