Eastman Briefs - C&EN Global Enterprise (ACS Publications)

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Eastman

Briefs

FOR JANUARY

Cyclohexyl Derivatives Among several cyclic derivatives offered this month are three stereo types that are a cut above the average as intermediates for condensation polymers, urethane elastomers and plasticizers. And for the pharmaceutical trade—an azabicylo compound which looked so unusual to us we asked our research chemists if it was a new composition of matter. The answer was "yes" and "no." The "no" being that it had been reported in the litera­ túre—as a compound which could not be prepared! Samples úpon request.

1, 4 - C y c l o h e x a n e b i s

Form Isomer content Purity, %

(methylamine)

clear liquid U0% cis; 60% trans 99

Reaction sites and structure of this diamine suggest products for rubber and related fields, for instance, N,N'-dialkylated derivatives. 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 B31

1. 4 - C y c l o h e x a n e d i m e t h a n o l Form solid Melting point 41-61°C. Parity, % 99 Note to Purchasing Agents: If someone in your organization orders an alicyclic, high-purity, stable, reactive, 30/70 cis-trans isomer composition intermediate supplied as a 70% solution in methanol for use as a cross-linking agent in urethane elastomers—this is it. 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 Bil

3 - A z a b i c y c l o (3.2.2) n o n a n e Form Crystalline solid Melting point 180 (sublimes) °C. Purity, % 98 This one is so "hot-out-of-an-Erlenmeyer" that f rankly we can only point it in the direction of the pharmaceutical field. So here it is, what can you do with it. 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 B32

Dimethyl 1, 4 - C y c l o h e x a n e d i c a r b o x y l a t e Form partially crystallized liquid Melting point cis isomer (60%) 1VC. trans isomer (U0%) 71°C. Parity, % 99 Try this one for condensation polymers šuch as polyesters, polyamides, and alkyds. With its wide melting range between isomers, you can evaluate an enriched form of each, or the combination, as supplied in the sample. A three-for-one offer, almost.

Chemicals Division Eastman Chemical Products, Inc. subsidiary of Eastman Kodak Company Kingsport, Tennessee

AN

Please send more dáta on these chemicals:

Bil

B30 D

B3lD B 3 2

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Ťitič

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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 «ÄÄ B30

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Zóne No.

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CUP AND FILÉ ADVEHTISEMENT