Eastman Briefs FOR
DECEMBER
Tetramethyl-1,3-cyclobutanedione
Dicyclohexy lamine
Form Melting point 115-116°C. (with Boiling range, 760 mm Vapor pressure, 87° C
Form Specific gravity, 20°C. Boiling range, 760 mm. Purity, %
solid sublimation) 159°C< 38 mm.
Believe this is a first—from our research labora tories a 4-carbon r i n g s t r u c t u r e t h r o u g h a com mercially practical route. Ask us for information on its cyclic derivatives, chain cleavage compounds, and heterocyclic possibilities. (See B15.)
E a s t m a n C h e m i c a l P r o d u c t s , Inc. Kingsport, Tennessee »«.*
liquid 0.915 255-257°C. 98
Not a brand new compound but one in which much new interest is s t i r r i n g in fields of catalysis and corrosion inhibition.
E a s t m a n C h e m i c a l Products, Inc. Kingsport, Tennessee B17
Bl 4
2,2,4,4- -Tetramethy l« 1,3-cy c l o b u t a n e d i o l Form solid Melting point 125-135°C. Boiling range, 760 mm 210-215°C. Isomer composition 50% cis; 50% trans An 8-carbon diester of this cyclobutanediol turned out to be about seven times more stable than the same ester of another commercial glycol. This sug gests a new nucleus for synthetic lubricants. E a s t m a n C h e m i c a l P r o d u c t s , Inc. Kingsport, Tennessee «««
Ν,Ν-Dimethylcyclohexylamine Form liquid Specific gravity, 20°C 0.81*90 Boiling range, 760 mm 157-160° C. Purity, % 99 We would say this tertiary amine ought to become an important polyurethane catalyst. We would also say it should act well as a corrosion inhibitor and maybe even tempt our pharmaceutical synthesizertype friends. What would you say? E a s t m a n C h e m i c a l P r o d u c t s , Inc. Kingsport, Tennessee B18
BID LA
2,2,4- Trimethyl P e n t a n e d i o l Monoisobutyrate Form liquid Specific gravity,20°C. 0.9472 Boiling range, 760 mm 2UU-2U7°C. Purity, % 98 Here's a low cost sort of an odd ball which with di rect esterification promotes a group of even odder balls, plasticizers and such. Can't tell you much more at this time but we do have some ideas. E a s t m a n C h e m i c a l Products, Inc. Kingsport, Tennessee
Chemicals Division Eastman Chemical Products, Inc. subsidiary of Eastman Kodak Company Kingsport, Tennessee Please send more data on these chemicals:
Β16
B17
Β1Θ
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Title
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B16
Address
Zone No.
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ANALYTICAL CHEMISTRY
