IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0331674
(2002-12-27)
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발명자
/ 주소 |
- Amendola, Steven C.
- Kelly, Michael T.
- Ortega, Jeffrey V.
- Wu, Ying
|
출원인 / 주소 |
|
대리인 / 주소 |
Gibbons, Del Deo, Dolan, Griffinger & Vecchione
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인용정보 |
피인용 횟수 :
44 인용 특허 :
9 |
초록
▼
The present invention relates to processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds of the formula YBH4by the reaction of a boron-containing compound represented by
The present invention relates to processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds of the formula YBH4by the reaction of a boron-containing compound represented by the formula BX3with hydrogen or an aldehyde to obtain diborane and HX, and reacting the diborane with a Y-containing base selected from those represented by the formula Y2O, YOH and Y2CO3to obtain YBH4and YBO2. Y is selected from the group consisting of the alkali metals, pseudo-alkali metals, alkaline earth metals, an ammonium ion, and quaternary amines of the formula NR4+,wherein each R is independently selected from hydrogen and a straight- or branched-chain C1-4alkyl group, and X is selected from the group consisting of halide ions, --OH, --R' and --OR' groups, chalcogens, and chalcogenides, wherein R' is a straight- or branched-chain C1-4alkyl group.
대표청구항
▼
The present invention relates to processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds of the formula YBH4by the reaction of a boron-containing compound represented by
The present invention relates to processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds of the formula YBH4by the reaction of a boron-containing compound represented by the formula BX3with hydrogen or an aldehyde to obtain diborane and HX, and reacting the diborane with a Y-containing base selected from those represented by the formula Y2O, YOH and Y2CO3to obtain YBH4and YBO2. Y is selected from the group consisting of the alkali metals, pseudo-alkali metals, alkaline earth metals, an ammonium ion, and quaternary amines of the formula NR4+,wherein each R is independently selected from hydrogen and a straight- or branched-chain C1-4alkyl group, and X is selected from the group consisting of halide ions, --OH, --R' and --OR' groups, chalcogens, and chalcogenides, wherein R' is a straight- or branched-chain C1-4alkyl group. y", 3rdEdition, Harper Collins, Chapter 14, 1983. Hubbard, John L., Tetrahedron Letters; Purification of Sodium and Potassium Hydrides; Preparation of Trialkyl-borohydrides with Exceptionally Larger Steric Requirements; J. American Chem. Soc., 1988, 29, 3197-3200;. "CRC Handbook of Chemistry and Physics", 69thEdition, 1988-1989. Russian Article, Tom 34, 1989. Shriver et al., "Inorganic Chemistry", W.H. Freeman Company, 1990, pp. 170-175. S. Narasimhan; K. Ganeshwar Prasad and S. Madhavan, Calcium Borohydride: A Reagent For Facile Conversion of Carboxylic Esters to Alcohols and Aldehydes, Synthetic Communications, 25(11), 1689-1697 (1995). U.S. patent application No. 20010022960, titled "Hydrogen generating method and hydrogen generating apparatus" to Kojima et al., filed Sep. 20, 2001.
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