Organosilicon on solid oxides, and related complexes, compositions, methods and systems
AssigneeThe Regents of the University of California
InventorsMatthew P. Conley, Damien B. Culver
Life of this patent
Estimating the term…
Abstract
Organosilicon Lewis acids supported on activated oxides and metal oxo complexes grafted on the organosilicon Lewis acids as heterogeneous catalysts and the related compositions, methods and systems are described. These organosilicon Lewis acids and the grafted metal oxo complexes catalyze industrially important chemical reactions including, respectively, C—F bond activation and olefin metathesis reactions such as homocoupling and polymerizations.
Claims16
A solid organosilicon compound comprising a Formula (I)
- [M1mOo1Si1(R1R2R3)Lq/z] [M2Oo2Si2(R1R2R3)]x (I)
- wherein
- M1 and M2 are selected from the group consisting of Al, Zn, and Zr, and any combinations thereof-having an oxidation state of +p, wherein p ranges from 2 to 4,
- Si1 is a Lewis acidic silicon connected to M1 via an oxygen, wherein other atoms in the solid organosilicon compound are represented stoichiometrically in relation to Si1,
- q represents a charge for M1mOo1Si1(R1R2R3), wherein q ranges from 1 to 3,
- L is selected from the group consisting of sulfate (SO42−), sulfite (SO32−), selenate (SeO42−), phosphonate (HPO32−), phosphate (PO43−), pyrophosphate (P2O74−), chloride (Cl−), chlorate (ClO3−), bromide (Br), bromate (BrO3−), tetraborate (B4O72−), vanadate (VO43−), tungstate (WO42−), molybdate (MoO42−), p-toluene sulfonate, trifluoroacetate and any combinations thereof and has a negative charge of −z, wherein z ranges from 1 to 3,
- Si2 represents a silicon bounded to M2 via an oxygen,
- m is number of M1,
- o1, and o2 are the number of O respectively bonded to M1 and M2,
- wherein (m×p)+[o1×(−2)]+1=q,
- q/z is the number of counter anion L,
- p+[o2×(−2)]+1=0,
- R1, R2, and R3 are each independent a substituent comprising 1 to 24 carbon atoms,
- x ranges from 0 to 1000.
The catalytic system of any 7, wherein the silane compound is selected from the group consisting of triethylsilane, diethylmethylsilane, polymethylhydrosilane (PMHS), methyldiethoxysilane, diethoxydimethylsilane triethoxysilane.
Dependencies are inferred from the claim text.