Synthesis of Molybdenum Imido Alkylidene Complexes Containing N,N'-Disubstituted 2,2'-Bisamido-1,1'-binaphthyl Ligands

摘要

Addition of the dipotassium salt of 2,2'-bis-p-tolylsulfonamido-1,1'-binaphthyl (K_2[BINA-(NTs)_2]) to Mo(NAr)(CHCMe_2Ph)(OTf)_2(dme)(Ar=2,6-i-Pr_2C_6H_3; OTf=OSO_2CF_3), Mo(N-2-CF_3C_6H_4)(CHCMe_2Ph)(OTf)_2(dme), and Mo(N-2-CF_3C_6H_4)(CH-t-Bu)(OTf)_2(dme) gave Mo(NAr)(CHCMe_2Ph)[BINA(NTs)_2](1a), Mo(N-2-CF_3C_6H_4)(CHCMe_2Ph)[BINA(NTs)_2](1b), and Mo(N-2-CF_3C_6H_4)(CH-t-Bu)[BINA(NTs)_2](1c), respectively. The X-ray crystal structure of 1c showed that one sulfonyl oxygen is coordinated to the molybdenum. Related complexes, Mo(NAr)(CHCMe_2Ph)[BINA(N-i-Pr)_2] (2) and Mo(NAR)(CHCMe_2Ph)[BINA(NTMS)_2](3), were prepared similarly. The pseudotetrahedral nature of 2 was confirmed in an X-ray study. None of these complexes reaxts readily with ethylene, styrene, benzaldehyde, or diallyl ether.