Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1998-12-22
2000-04-11
Kight, John
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
2521881, 149 22, 423294, 568 1, C07D30706, C09K 300
Patent
active
060489855
ABSTRACT:
A method of stabilizing borane-tetrahydrofuran complex comprises the step of maintaining the temperature of the borane-tetrahydrofuran complex at or below 20.degree. C. A method of reacting a borane reagent with a substrate comprises the steps of heating the borane reagent and the substrate in a reaction vessel and preventing escape of evolved diborane from the reaction vessel. Preferably, a reaction vessel containing a borane reagent and a substrate is maintained under at greater than atmospheric pressure with back-pressure regulation.
REFERENCES:
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J. R. Elliott, W. L. Roth, G. F. Roedel and E. M. Boldebuck JACS 1952, 74, pp. 5211-5212, "Solubility of Diborane- and Boron-containing Lithium Salts".
B. Rice, J. A. Livasy, G. W. Schaeffer JACS 1955, 77, p. 2750. "Tetrahydrofuran-Borine".
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C. F. Lane Chem. Rev. 1976, 76, pp. 773-799 "Reduction of Organic Compounds With Diborane".
H. C. Brown, M. C. Desai, P. K. Jadhav JOC 1982, 47, pp. 5065-5069 "Hydroboration. 61. Diisopinocampheylborane of High Optical Purity. Improved Preparation and Asymmetric Hydroboration of Representative Cis-Disubstituted Alkenes".
M. Follet Chem. and Industry 1986, pp. 123-128 "Use of Complexes of Diborane and Organoboranes on a Laboratory and Industrial Scale".
K. Smith Chem. and Industry 1987, pp. 603-611. "Advances in Organoboron Chemistry--Prospects for Industry".
Burkhardt Elizabeth R.
Corella, II Joseph A.
Aulakh Charanjit S.
Bartony, Jr. Henry E.
Kight John
Mine Safety Appliances Company
Uber James G.
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