IP Library › Granted Patent US 8,039,666
Granted Patent B2
US 8,039,666 · App. 12/592,180 · Granted Oct 18, 2011

Synthesis of amine boranes

Assignees: Rohm and Haas Company; Air Products and Chemicals, Inc.
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Quick Facts
Patent No.
US 8,039,666
App. No.
12/592,180
Granted
Oct 18, 2011
Kind
B2
Abstract

A method for preparing an amine borane from an alkali metal borohydride and an amine salt. The alkali metal borohydride is allowed to react with 0.95 to 1.05 equivalents of the amine salt in a solvent which contains water and an amine.

Claims (6)

1. A method for preparing an amine borane from an alkali metal borohydride and an amine salt; said method comprising allowing the alkali metal borohydride to react with 0.95 to 1.05 equivalents of the amine salt in a solvent comprising: (i) a free amine which is a basic form of said amine salt; and (ii) water; wherein a weight ratio of total water to alkali metal borohydride is from 0.5:1 to 2.7:1; and wherein the solvent contains no more than 5 wt % of solvents other than water and said amine.

2. The method of claim 1 in which the weight ratio of total water in the solvent to alkali metal borohydride is from 1:1 to 2.7:1.

3. The method of claim 2 in which the amine salt is a trialkylamine salt.

4. The method of claim 3 in which a weight ratio of free amine to alkali metal borohydride is from 1:1 to 6:1.

5. The method of claim 4 in which the alkali metal borohydride is sodium borohydride, which is added in the form of a dihydrate.

6. The method of claim 4 in which the alkali metal borohydride is potassium borohydride.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Apr 14, 2026
From: PNC BANK, NATIONAL ASSOCIATION, AS AGENT
To: VERTELLUS PERFORMANCE CHEMICALS LLC; VERTELLUS SBH HOLDINGS LLC; VSI ACQUISITION CORP.
Reel/Frame 074358/0202 →
RELEASE OF SECURITY INTEREST Recorded Sep 27, 2019
From: PNC BANK, NATIONAL ASSOCIATION
To: ASCENSUS SPECIALTIES LLC
Reel/Frame 050575/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Sep 22, 2017
From: WILMINGTON TRUST NATIONAL ASSOCIATION
To: VERTELLUS PERFORMANCE CHEMICALS LLC; VERTELLUS SBH HOLDINGS LLC; VSI ACQUISITION CORP.
Reel/Frame 043954/0261 →
SECURITY INTEREST Recorded Apr 13, 2015
From: VERTELLUS PERFORMANCE CHEMICALS LLC; VERTELLUS SBH HOLDINGS LLC; VSI ACQUISITION CORP.
To: PNC BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 035389/0885 →
SECURITY INTEREST Recorded Feb 11, 2015
From: VERTELLUS PERFORMANCE CHEMICALS LLC; VERTELLUS SBH HOLDINGS LLC; VSI ACQUISITION CORP.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 034942/0131 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2011
From: CARTOLANO, ANTHONY ROCCO; IVANOV, SERGEI VLADIMIROVICH; TEICH, CHERYL IRENE; YAMAMOTO, JOHN HIROSHI
To: ROHM AND HAAS COMPANY; AIR PRODUCTS AND CHEMICALS, INC.
Reel/Frame 026860/0677 →
Continuity (1)
Related Publication 20100130780A1 · May 27, 2010