16883-45-7 Usage
Uses
Used in Chemical Synthesis:
Tetramethylammonium borohydride is used as a reactant for the preparation of iridium tetrahydride complexes bearing a tridentate pincer-type bis(phosphino)silyl ligand. This application is crucial in the development of new and advanced metal complexes with potential applications in various fields.
Used in Reduction Reactions:
As a reducing agent, Tetramethylammonium borohydride is utilized in reduction reactions to convert specific compounds into their reduced forms. This capability is valuable in various chemical processes, where the reduction of certain molecules is necessary to achieve desired outcomes or products.
Purification Methods
Recrystallisation of the borohydride from H2O three times yields ca 94% pure compound. Dry in high vacuum at 100o for 3hours. The solubility in H2O is 48% (20o), 61% (40o), and in EtOH 0.5% (25o) and MeCN 0.4% (25o). It decomposes slowly in a vacuum at 150o, but rapidly at 250o. The rate of hydrolysis of Me4N.BH4 (5.8M) in H2O at 40o is constant over a period of 100hours at 0.04% of original wt/hour. The rate decreases to 0.02%/hour in the presence of Me4NOH (5% of the wt of Me4N.BH4). [Banus et al. J Am Chem Soc 74 2346 1952, Beilstein 4 IV 148.]
Check Digit Verification of cas no
The CAS Registry Mumber 16883-45-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,8 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16883-45:
(7*1)+(6*6)+(5*8)+(4*8)+(3*3)+(2*4)+(1*5)=137
137 % 10 = 7
So 16883-45-7 is a valid CAS Registry Number.
InChI:InChI=1/C4H12N.B/c1-5(2,3)4;/h1-4H3;/q+1;-1
16883-45-7Relevant articles and documents
Pigments of fungi. LXIII Synthesis of (1S,3R)- and (1R,3S)-austrocortilutein and the enantiomeric purity of austrocortilutein in some Australian Dermocybe toadstools
Elsworth, Catherine,Gill, Melvyn,Raudies, Evelin,Ten, Abilio
, p. 41 - 46 (2000)
The naturally occurring tetrahydroanthraquinones (1S,3R)- and (1R,3S)-austrocortilutein (1b) and (1d), respectively, are synthesized for the first time in enantiomerically pure form by Diels-Alder cycloaddition between the functionalized butadiene derivative (4) and the corresponding monochiral trans-1,3-dihydroxy-1,2,3,4-tetrahydro-5,8-naphthoquinone (5a) or (5b), themselves derived from citramalic acid. Separation of the four stereoisomeric austrocortiluteins by using h.p.l.c. over a chiral stationary phase reveals that the enantiomeric purity of the (1S,3S)-and (1R,3R)-quinones (1a) and (1c) varies from species to species whereas the (1S,3R)-isomer (1b) is, in the five cases examined, enantiomerically pure. CSIRO 2000.
Preparation of high purity tetrahydrocarbylammonium tetrahydridoborates
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, (2008/06/13)
High purity tetrahydrocarbylammonium tetrahydridoborates are prepared under anhydrous conditions by reacting tetrahydrocarbylammonium salts with at least 8% molar excess of an alkali metal hydroxide in the presence of ethanol to produce the corresponding tetrahydrocarbylammonium hydroxides and alkali metal salts, removing the alkali metal salts and adding an alkali metal borohydride to the solution to produce the corresponding tetrahydrocarbylammonium tetrahydridoborates and alkali metal hydroxides.
