Regeneration of polyborazylene

Chemistry of inorganic compounds – Boron or compound thereof – Nitrogen and hydrogen containing

Reexamination Certificate

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C252S188250, C252S188260, C423S284000, C423S658200

Reexamination Certificate

active

07846410

ABSTRACT:
Method of producing ammonia borane, comprising providing polyborazylene; digesting the polyborazylene with a dithiol-containing agent to produce a boro-sulfide compound and a byproduct; converting the byproduct to the boro-sulfide product of step (b) by reaction with a first alkyl-tin hydride; and, converting the boro-sulfide compound produced in steps (b) and (c) to ammonia borane by reaction with a second alkyl-tin hydride.

REFERENCES:
patent: 6025454 (2000-02-01), Sneddon et al.
patent: 6277348 (2001-08-01), Pujol et al.
patent: 2007/0243122 (2007-10-01), Ramachandran et al.
patent: 2008/0311017 (2008-12-01), Burrell et al.
patent: WO 2007/120511 (2007-10-01), None
Stephens et al., “Ammonia-borane: the hydrogen source par excellence?” Dalton Transactions, 2007, pp. 2613-2626.
Matus et al., “Reliable Predictions of the Thermochemistry of Boron-Nitrogen Hydrogen Storage Compounds: BNH, x=2,3.” J. Phys. Chem. A, 2007, 111, 4411-4421.
Bluhm et al. “Amineborane-Based Chemical Hydrogen Storage: Enhanced Ammonia Borane Dehydrogenation in Ionic Liquids.” J. Am. Chem. Soc. 2006, 128, 7748-7749.
Denney et al., “Efficient Catalysis of Ammonia Borane Dehydrogenation.” J. Am. Chem. Soc. 2006, 128, 12048-12049.
Stephens et al. “Acid Initiation of Ammonia-Borane Dehydrogenation for Hydrogen Storage.” Angew. Chem. 2007, 119, 760-763.
Ramachandran et al., “Preparation of Ammonia Borane in High Yield and Purity, Methanolysis and Regeneration.” lnorg. Chem., 2007, 46(19), 7810-7817.
Ott et al., Chemical Hydrogen Storage Research at Los Alamos National Laboratory, DOE Hydrogen Program FY 2007 Annual Progress Report, 2007, Oct. 2007, p. 499.

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