Claims
- 1. A compound of the formula: ##STR11## wherein: M is Zr, Hf or Ti;
- (C.sub.5 H.sub.4-x R.sub.x) is a cyclopentadienyl ring which is substituted with from zero to four substituent groups R, "x" is 0, 1, 2, 3, or 4 denoting the degree of substitution, and each substituent group R is, independently, a radical selected from a group consisting of C.sub.1 -C.sub.20 hydrocarbyl radicals, substituted C.sub.1 -C.sub.20 hydrocarbyl radicals wherein one or more hydrogen atoms is replaced by a halogen radical, an amido radical, a phosphido radical, and alkoxy radical, C.sub.1 -C.sub.20 hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from Group IV A of the Periodic Table of Elements; halogen radicals, amido radicals, phosphido radicals, alkoxy radicals, alkylborido radicals or any other radical containing Lewis acidic or basic functionality; or (C.sub.5 H.sub.4-x R.sub.x) is a cyclopentadienyl ring in which at least two adjacent R-groups are joined forming a C.sub.4 -C.sub.20 ring to give a saturated or unsaturated polycyclic cyclopentadienyl ligand;
- R' is a radical selected from C.sub.1 -C.sub.20 aliphatic and alicyclic hydrocarbyl radicals wherein one or more hydrogen atoms may be replaced by radicals selected from halogen, amido, phosphido, alkoxy or any other radical containing a Lewis acidic or basic functionality, with the proviso that R' is covalently bonded to the nitrogen atom through a 1.degree. or 2.degree. carbon atom;
- each Q may be independently an univalent anionic ligand, or both Q together may be an alkylidene or a cyclometallated hydrocarbyl or any other divalent anionic chelating ligand with the proviso that where any Q is a hydrocarbyl such Q is not a substituted or unsubstituted cyclopentadienyl radical;
- T is a covalent bridging group containing a Group IV A or V A element;
- L is a neutral Lewis base; and
- "w" is a number from 0 to 3.
- 2. A compound of the formula: ##STR12## wherein: M represents Ti, Hf or Zr;
- (C.sub.5 H.sub.4-x R.sub.x) is a cyclopentadienyl ring which is substituted with from zero to four substituent groups R, "x" is 0, 1, 2, 3, or 4 denoting the degree of substitution, and each substituent group R is, independently, a radical selected from a group consisting of C.sub.1 -C.sub.20 hydrocarbyl radicals, substituted C.sub.1 -C.sub.20 hydrocarbyl radicals wherein one or more hydrogen atoms is replaced by a halogen radical, an amido radical, a phosphido radical, and alkoxy radical, C.sub.1 -C.sub.20 hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from Group IV A of the Periodic Table of Elements; halogen radicals, amido radicals, phosphido radicals, alkoxy radicals, alkylborido radicals or any other radical containing Lewis acidic or basic functionality; or (C.sub.5 H.sub.4-x R.sub.x) is a cyclopentadienyl ring in which at least two adjacent R-groups are joined forming a C.sub.4 -C.sub.20 ring to give a saturated or unsaturated polycyclic cyclopentadienyl ligand;
- each of R.sup.1 and R.sup.2 are independently selected from C.sub.1 -C.sub.20 hydrocarbyl radicals;
- each Q is independently selected from halide, hydride, substituted or unsubstituted C.sub.1 -C.sub.20 hydrocarbyl radical, alkoxide, aryloxide, amide and phosphide radicals with the proviso that Q is not a substituted or unsubstituted cyclopentadienyl radical;
- R' is selected from C.sub.1 -C.sub.20 aliphatic and alicyclic hydrocarbyl radicals with the proviso that R' is covalently bonded to the nitrogen atom through a 1.degree. or 2.degree. carbon atom;
- L is a neutral Lewis base; and
- "w" is a number from 0 to 3.
- 3. The compound of claim 2 wherein M is Ti.
- 4. The compound of claim 2 where:
- M is Ti; and
- R.sup.1 and R.sup.2 are each independently selected from alkyl and aryl radicals having from 1 to 20 carbon atoms.
- 5. The compound of claim 2 wherein R' is alicyclic.
- 6. A compound of the formula: ##STR13## M is Zr, Hf or Ti in its highest formal oxidation state (+4, d.sup.O complex);
- (C.sub.5 H.sub.4-x R.sub.x) is a cyclopentadienyl ring which is substituted with from zero to four substituent groups R, "x" is 0, 1, 2, 3, or 4 denoting the degree of substitution, and each substituent group R is, independently, a radical selected from a group consisting of C.sub.1 -C.sub.20 hydrocarbyl radicals, substituted C.sub.1 -C.sub.20 hydrocarbyl radicals wherein one or more hydrogen atoms is replaced by a halogen radical, an amido radical, a phosphido radical, and alkoxy radical, C.sub.1 -C.sub.20 hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from Group IV A of the Periodic Table of Elements; halogen radicals, amido radicals, phosphido radicals, alkoxy radicals, alkylborido radicals or any other radical containing Lewis acidic or basic functionality; or (C.sub.5 H.sub.4-x R.sub.x) is a cyclopentadienyl ring in which at least two adjacent R-groups are joined forming a C.sub.4 -C.sub.20 ring to give a saturated or unsaturated polycyclic cyclopentadienyl ligand;
- R' is a radical selected from C.sub.1 -C.sub.20 aliphatic and alicyclic hydrocarbyl radicals wherein one or more hydrogen atoms may be replaced by radicals selected from halogen, amido, phosphido, alkoxy or any other radical containing a Lewis acidic or basic functionality, with the proviso that R' is covalently bonded to the nitrogen atom through a 1.degree. or 2.degree. carbon atom;
- each Q may be independently an univalent anionic ligand selected from a halide, hydride, or substituted or unsubstituted C.sub.1 -C.sub.20 hydrocarbyl, alkoxide, aryloxide, amide, phosphide, or both Q together may be an alkylidene or a cyclometallated hydrocarbyl or any other divalent anionic chelating ligand with the proviso that where any Q is a hydrocarbyl such Q is not a substituted or unsubstituted cyclopentadienyl radical,;
- "w" is a number from 0 to 3;
- T is selected from radicals of the formula (CR.sup.3 R.sup.4) wherein R.sup.3 and R.sup.4 are independently selected from hydrogen and C.sub.1 -C.sub.20 hydrocarbyl radicals; and
- y is 1 or 2.
- 7. The compound of claim 6 wherein M is Ti.
- 8. The compound of claim 6 wherein:
- M is Ti and
- R.sup.3 and R.sup.4 are selected from hydrogen, C.sub.1 -.sub.6 alkyl radicals and C.sub.6 -C.sub.12 aryl radicals.
- 9. A compound of the formula: ##STR14## wherein R.sup.1 and R.sup.2 are each independently a hydrocarbyl radical, each Q and Q' is independently a halide or a C.sub.1 -C.sub.20 hydrocarbyl radical, R' is an aliphatic or alicyclic hydrocarbyl radical having from 1 to 20 carbon atoms and R' is covalently bonded to the nitrogen atom through a 1.degree. or 2.degree. carbon atom, L is a neutral Lewis base where "w" denotes a number from 0 to 3 and each R is, independently a C.sub.1 -C.sub.4 hydrocarbyl radical or hydrogen, x is 0, 1, 2, 3 or 4, or two adjacent R groups may join to form a C.sub.4 -C.sub.10 ring.
- 10. The compound of claim 9, having the formula: ##STR15## wherein R.sup.1 and R.sup.2 are each independently a hydrocarbyl radical, each Q and Q' is independently a halide or alkyl radical, R' is an aliphatic or alicyclic hydrocarbyl radical of from 1 to 20 carbon atoms and R' is covalently bonded to the nitrogen atom through a 1.degree. or 2.degree. carbon atom, and L is a neutral Lewis base where "w" denotes a number from 0 to 3.
SPECIFICATION
This application is a continuation-in-part of U.S. Ser. No. 850,751, filed Mar. 13, 1992, now U.S. Pat. No. 5,264,405, which is a continuation-in-part of U.S. Ser. No. 581,841, filed Sep. 19, 1990, now U.S. Pat. No. 5,096,867, which is a continuation-in-part of U.S. Ser. No. 533,245 filed Jun. 4, 1990, now U.S. Pat. No. 5,055,438, which is a continuation-in-part of U.S. Ser. No. 406,945 filed Sep. 13, 1989, now abandoned. This application is also a continuation-in-part of U.S. Ser. No. 542,236 filed Jun. 22, 1990 and is a continuation-in-part of 938,198 filed Aug. 28, 1992 now abandoned which is a continuation of U.S. Ser. No. 133,480, now abandoned, filed Dec. 22, 1987, which is a continuation-in-part of U.S. Ser. No. 008,800, filed Jan. 30, 1987, now abandoned and a continuation-in-part of U.S. Ser. No. 875,165 filed Apr. 28, 1992, now U.S. Pat. No. 5,278,119, which is a continuation of U.S. Ser. No. 133,052, now abandoned, filed Dec. 21, 1987, which is a continuation-in-part of U.S. Ser. No. 011,471, filed Jan. 30, 1987, now abandoned.
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Mar 1991 |
EPX |
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Jan 1992 |
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Dec 1992 |
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| Entry |
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| M. Reetz, Organotitanium Reagents in Organic Synthesis, pp. 117 and 121 (Springer-Verlay 1986). |
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Related Publications (2)
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Number |
Date |
Country |
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542236 |
Jun 1990 |
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938198 |
Aug 1992 |
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Continuations (2)
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Number |
Date |
Country |
| Parent |
133480 |
Dec 1987 |
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| Parent |
133052 |
Dec 1987 |
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Continuation in Parts (6)
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Number |
Date |
Country |
| Parent |
850751 |
Mar 1992 |
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| Parent |
581841 |
Sep 1990 |
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| Parent |
533245 |
Jun 1990 |
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| Parent |
406945 |
Sep 1989 |
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| Parent |
08800 |
Jan 1987 |
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| Parent |
11471 |
Jan 1987 |
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Patent Grant
5621126
