Patent ID: 11912731
Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 12:
13. The method according to claim 1, wherein it takes place in the presence of an additive chosen from:
triadamantylephosphine (PAdm3), tris[2-diphenylephosphino)ethyl]phosphine (PP3), 1,1,1-tris(diphenylphosphinomethyl)ethane (triphos), 1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IPr), tricyclohexylphosphine, acetate (AcO), acetylacetonate (acac), 1,2-bis-diphenylphosphinoethane (dppe), N,N,N,N′-tetra-methyl-ethylenediamine (TMEDA), N,N′-bis(2,6-diisopropylphenyl) B-dicetiminate (BDI), 1,2-bis(diphenylphosphino)ethane (dppb), or pyridine;
trifluoromethanesulfonic acid (TfOH), trifluoroacetic acid (TFA), or bis(trifluoromethane)sulfonamide (HNTf2);
boron trifluoride (BF3), tris(pentafluorophenyl)borane (B(C6F5)3), or aluminium trichloride (AICl3);
triethylamine, potassium Cert-butoxide (tBuOK);
lithium chloride (LiCI), sodium chloride (NaCl), or potassium chloride (KCl); and
carbenes chosen from the group consisting of salts of 1,3-bis(2,6-diisopropylphenyl)-1H-imidazol-3-ium (IPr), 1,3-bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium (s-IPr), 1,3-bis(2,4,6-trimethylphenyl)-1H-imidazol-3-ium (IMes), 1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydro-1H-imidazol-3-ium (s-IMes), 4,5-dichloro-1,3-bis(2,6-diisopropylphenyl)-1H-imidazol-3-ium (Cl2—IPr), 1,3-di-tert-butyl-1H-imidazol-3-ium (ItBu), and 1,3-di-tert-butyl-4,5-dihydro-1H-imidazol-3-ium (s-ItBu), said salts being in the form of chloride salts or tetraphenylborate salts.