CALLERY BYLINE
1
CALLERY BYLINE News and views on the application of chemicals to improve end products New complex organo-boron compounds for the researcher These newly developed compounds are now available for experiment and development work. Price for samples of each is $1.00 per gram. CH 3 H CHS-^NIBAH C12H25 H hyldodecylamine-Borane CH3 I CH 3 CH 2 CH 2 - CH Tri-Sec-amylborane B 3 PHYSICAL PROPERTIES Mole Wt Form Refractive Index M P Cyclohexyl Boric Acid 128 Powder 50°C Dimethyldodecyl- amine-Borane 227 Liquid 25°c 0.802 g/ml nj 5 1.4500 7-8°C Tri-Sec- amylborane 224 Liquid 20°c 0.790 nj° 1.4455 297°F Amine-Boranes: unique catalysts and reducing agents Amine-Boranes are effective transesteri- fication catalysts and color improvers for the polymerization of polyesters. Their selective reduction of trace car- bonyl contaminants in various solvent systems is best exemplified by their "clean up" action in the oxo-alcohol process. The kinetics of acid hydrolysis indi- cate Amine-Boranes exhibit unusual stability at low pH. This suggests their potential application in acid as well as neutral systems where selective car- bonyl reduction is a requirement, and the rapid hydrolysis of reducing hydro- gen is undesirable. Dimethylamine-Borane (CH 3 ) 2 NH:BH 3 Trimethylamine-Borane (CH 3 ) 3 N:BH 3 (white solids) and Pyridine-Borane C 6 H 5 N:BH 3 (a light amber liquid) are available. Clip the coupon below and send it on to us for our Technical Bulletin C-200 on Amine Boranes. Diborane: the basic boron- hydride building block Diborane is the simplest compound of boron and hydrogen. It is the first com- mercially available boron hydride and is the basic building block of boron hydride chemistry. Diborane reacts with many organic functional groups, adds to carbonyl groups and double bonds, complexes with ethers and amines, and decom- poses thermally to give higher boron hydrides, such as Pentaborane and Decaborane, and elemental boron. Diborane rapidly reduces the nor- mally stable carboxylic acids in non- aqueous systems. It reduces acid chlo- rides more slowly than it reduces ni- trites or carboxylic acids, in contrast to the relative reducing rates of Sodium Borohydride. Diborane also reacts much more rapidly with nitrites than with esters; the reverse is true for Lithium Borohydride. Diborane and some of its derivative products such as Amine-Boranes have attracted wide attention for hydrobora- tion of olefins. Selected uses have been established for doping pure silicon to obtain the P type semi-conductors. You'll find complete information about handling and shipping Diborane in Handling Bulletin C-021. And for technical data see Bulletin C-020. Use the coupon to get your copies. Callery Chemical Company P.O. Box 11145 Pittsburgh 37 f Pennsylvania Please send me the bulletins checked below: • C-200 Amine-Boranes • C-020 Diborane • C-021 Diborane Handling Name . Title. Company^ Address_ City_ _Zone_ -State_ — J C & E N 71 New Text New Text New Text New Text Dimeth
Transcript of CALLERY BYLINE
CALLERY BYLINE News and views on the application of chemicals to improve end products
New complex organo-boron compounds for the researcher These newly developed compounds are now available for experiment and development work. Price for samples of each is $1.00 per gram.
CH3 H
CHS-^NIBAH
C12H25 H
hyldodecylamine-Borane
CH3 I
CH3 CH2 CH2 - CH
Tri-Sec-amylborane
B
3
PHYSICAL PROPERTIES
Mole Wt
Form
Refractive Index
M P
Cyclohexyl Boric Acid
128
Powder
50°C
Dimethyldodecyl-amine-Borane
227
Liquid
25°c 0.802 g/ml
nj5 1.4500
7-8°C
Tri-Sec-amylborane
224
Liquid
20°c 0.790
nj° 1.4455
297°F
Amine-Boranes: unique catalysts and reducing agents Amine-Boranes are effective transesteri-fication catalysts and color improvers for the polymerization of polyesters. Their selective reduction of trace car-bonyl contaminants in various solvent systems is best exemplified by their "clean up" action in the oxo-alcohol process.
The kinetics of acid hydrolysis indicate Amine-Boranes exhibit unusual stability at low pH. This suggests their potential application in acid as well as neutral systems where selective car-bonyl reduction is a requirement, and the rapid hydrolysis of reducing hydrogen is undesirable.
Dimethylamine-Borane (CH 3 ) 2 NH:BH 3
Trimethylamine-Borane (CH 3 ) 3 N:BH 3 (white solids)
and Pyridine-Borane C6H5N:BH3 (a light amber liquid)
are available. Clip the coupon below and send it on to us for our Technical Bulletin C-200 on Amine Boranes.
Diborane: the basic boron-hydride building block Diborane is the simplest compound of boron and hydrogen. It is the first commercially available boron hydride and is the basic building block of boron hydride chemistry.
Diborane reacts with many organic functional groups, adds to carbonyl groups and double bonds, complexes
with ethers and amines, and decomposes thermally to give higher boron hydrides, such as Pentaborane and Decaborane, and elemental boron.
Diborane rapidly reduces the normally stable carboxylic acids in nonaqueous systems. It reduces acid chlorides more slowly than it reduces nitrites or carboxylic acids, in contrast to the relative reducing rates of Sodium Borohydride. Diborane also reacts much more rapidly with nitrites than with esters; the reverse is true for Lithium Borohydride.
Diborane and some of its derivative products such as Amine-Boranes have attracted wide attention for hydrobora-tion of olefins. Selected uses have been established for doping pure silicon to obtain the P type semi-conductors.
You'll find complete information about handling and shipping Diborane in Handling Bulletin C-021. And for technical data see Bulletin C-020. Use the coupon to get your copies.
Callery Chemical Company P.O. Box 11145 Pittsburgh 37f Pennsylvania
Please send me the bulletins checked below:
• C-200 Amine-Boranes • C-020 Diborane • C-021 Diborane Handling
Name .
Title.
Company^
Address_
City_ _Zone_ -State_
— J
C & E N 71
New TextNew Text
New Text
New Text Dimeth
