Arylation of alkenylidenecyclopropanes via Heck reaction. A simple access to arylallylidenecyclopropanes

作者：Fall Yacoub; Doucet Henri^*; Santelli Maurice

来源：Tetrahedron, 2010, 66(12): 2181-2188.

DOI：10.1016/j.tet.2010.01.052

• Alkenylidenecyclopropanes
• Arylallylidenecyclopropanes
• Heck reaction
• Tetradentate ligand
• Allenes

Five alkenylidenecyclopropanes have been arylated using a catalytic amount of [Pd(C3H5)Cl](2) (0.004%) associated to the tetradentate ligand cis, cis, cis-1,2,3,4-tetrakis(diphenylphosphinomethyl)cyclopentane or Tedicyp as the catalyst The carbo-palladation step occurs on the terminal double bond of the vinyl-idenecyclopropanes, without interaction with the internal one The addition of the complex PdArL2 corresponds to an electrophilic attack on the face of the double bond.

• 出版日期2010-3-20