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Patent US4185028A successfully refreshed from Google Patents.
US4185028A
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Double ylide complexes of metals and process for making them
Assignee: Hoechst AG
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Filing: 1978-01-12
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Granted: 1980-01-22
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Expires: 1998-01-12
Abstract
Abstract Double ylide complexes of metals are made by reacting trimethylphosphin-imino-dimethyl-methylene phosphorane of the formula ##STR1## with one or more compounds of the metals nickel, palladium, platinum, gold, zinc, cadmium, aluminum, gallium, indium, thallium, magnesium or lithium. The novel double ylide complexes comprise various metal-bis[nitrido-bis(dimethylphosphonium methylides)], dimethyl-metal[nitrido-bis(dimethylphosphonium methylides)], and lithium-[nitrido-bis(dimethylphosphonium methylide)].
Inventors
- 👤 Hubert Schmidbaur
- 👤 Hans-Jurgen Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:40
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
7 words
A metal-bis[nitrido-bis(dimethylphosphonium methylide)] of the formula ##STR18##
Claim 2
Dependent Claim
7 words
A metal-bis[nitrido-bis(dimethylphosphonium methylide)] of the formula ##STR18##
Claim 3
Dependent Claim
16 words
Lithium-[nitrido-bis-(dimethylphosphonium methylide)] of the formula ##STR19## in which M stands for nickel, palladium, platinum or magnesium.
Claim 4
Dependent Claim
16 words
Lithium-[nitrido-bis-(dimethylphosphonium methylide)] of the formula ##STR19## in which M stands for nickel, palladium, platinum or magnesium.
Claim 5
Dependent Claim
6 words
Dimethylgold-[nitrido-bis(dimethylphosphonium methylide)] of the formula: ##STR20##
Claim 6
Dependent Claim
6 words
Dimethylgold-[nitrido-bis(dimethylphosphonium methylide)] of the formula: ##STR20##
Claim 7
Dependent Claim
111 words
A process for making double ylide complexes of metals, which comprises reacting trimethyl-phosphin-imino-dimethylmethylene-phosphorane of the formula ##STR21## with at least one metal compound selected from [(CH 3 ) 3 P] 2 MX 2 ; MX 2 ; [(CH 3 ) 3 P] 2 Ni(CH 3 )X; [(CH 3 ) 3 P] 2 Ni(CH 3 ) 2 ; [(CH 3 ) 2 AuX] 2 ; LiR or M'R 2 , in which M stands for nickel, palladium or platinum, X stands for chlorine, bromine or iodine, M' stands for magnesium and R stands for CH 3 , C 2 H 5 , C 3 H 7 or C 4 H 9 .
Claim 8
Dependent Claim
111 words
A process for making double ylide complexes of metals, which comprises reacting trimethyl-phosphin-imino-dimethylmethylene-phosphorane of the formula ##STR21## with at least one metal compound selected from [(CH 3 ) 3 P] 2 MX 2 ; MX 2 ; [(CH 3 ) 3 P] 2 Ni(CH 3 )X; [(CH 3 ) 3 P] 2 Ni(CH 3 ) 2 ; [(CH 3 ) 2 AuX] 2 ; LiR or M'R 2 , in which M stands for nickel, palladium or platinum, X stands for chlorine, bromine or iodine, M' stands for magnesium and R stands for CH 3 , C 2 H 5 , C 3 H 7 or C 4 H 9 .
Claim 9
Dependent Claim
49 words
A process as claimed in claim 1, wherein a metal-bis[nitrido-bis(dimethylphosphonium methylide)] of the formula ##STR22## in which M stands for nickel, palladium or platinum, is made by reacting trimethylphosphin-imino-dimethylmethylene phosphorane with bis(trimethylphosphine)nickel, palladium or platinum dichloride in an inert organic solvent at a temperature of 10° to 110° C.
Claim 10
Dependent Claim
71 words
A process as claimed in claim 1, wherein a metal-bis[nitrido-bis(dimethylphosphonium methylide)] of the formula ##STR23## in which M' stands for magnesium, is made by reacting trimethylphosphin-imino-dimethyl-methylene phosphorane with MgR 2 , in which R stands for CH 3 or C 2 H 5 , the reaction being effected in an inert organic solvent at a temperature of 10° to 110° C. and with agitation until evolution of gas has died down.
Claim 11
Dependent Claim
36 words
A process as claimed in claim 1, wherein the dimethylgold-[nitrido-bis(dimethylphosphonium methylide)] of the formula ##STR24## is made by reacting trimethylphosphin-imino-dimethyl-methylene phosphorane with bis[dimethylgold(III)-chloride] in an inert organic solvent at a temperature of 10° to 110° C.
Claim 12
Dependent Claim
43 words
A process as claimed in claim 1, wherein the lithium[nitrido-bis(dimethylphosphonium methylide)] of the formula ##STR25## is made by reacting trimethylphosphin-imino-dimethyl-methylene phosphorane with n-butyllithium in an inert organic solvent at a temperature of 0° to 110° C. until evolution of gas has died down.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |