Diamino-1,12-dodecane

Diamino-1,12-dodecane (17i2) was first allowed to equilibrate with P-CDX in dmso, allowing for the formation of the threaded species (I812). Two equivalents of [CoCl2en] were then added to the reaction mixture. The desired [2]-rotaxane (19 2) could be isolated in c. 7% yield after chromatography on Sephadex. Next, Ogino and... 

Bis - [2-methyl-propyl]-aluminiumhydrid und Tris-[2-methyl-propyl]-aluminium reduzieren Nitrile zu primaren Aminen3,4 (z.B.Benzylamin s. Bd. XIII/4, S. 221), Dinitrile zu 1, [Pg.112]

Various amine salts, such as hydrochlorides of 1,6-diaminohexane, 1,12-diamino-dodecane, 1-aminododecane and a bisulphate adduct of 1,6-di-isocyanatohexane. This was an attempt to introduce a final reactive step to form crosslinks between unfixed dye molecules on the fibre [193]. 

The world-wide production of PA (excluding fibers) in 1997 was 1.6x10 t, with a 75 % use of casting processed materials. For food contact articles the following can be used as starting materials straight chain u -amino acids (C6-C12) and their lactams adipic acids, azelaic acids, sebacic acids, dodecane dicarboxylic acids and heptadecane-dicarboxylic acids salts with hexamethylenediamine isophthalic acid, bis(4-aminocy-clohexyl)-methane, 2,2-bis(4 -aminocyclohexyl)-propane, 3,3 -dimethyl-4,4 -diamino-dicyclohexyl-methane, terephthalic acid or its methylester, l,6-diamino-2,2,4-tri-methylhexane, 1,6-diamino-2,4,4-trimethylhexane, l-amino-3-amino-methyl-3,5,5-tri-methylhexane. 

Die beschriebene Reaktion verlauft auch glatt mit Diamino-alkanen zuBis-[bis-(phos-phomethyl)-amino]-alkanen (... -ethan bis. .. -dodecan) Ausbeuten 50-96%. Bei der Reaktion mit 2-Amino-ethanol bzw. Bis-[2-hydroxy-ethyl]-amin erfolgt Ring-schluB unter Veresterung13 ... 

Columnar stacks of 3,4,5-trialkoxy-benzoylated 3,3 -diamino-2,2 -bipyridine triamide derivatives of benzene-1,3,5-carboxylic acid (87, 88) have recently been studied in dilute alkane (dodecane) and chloroform solution (Chart 14). In chloroform, neither the derivative with hexyloxy tails (88) nor the one with chiral citronellol tails (87) showed Cotton effects in the CD spectrum. TTie chiral derivative 87 showed such effects in dodecane, whereas the achiral derivative 88 showed them in the chiral solvent, (/7)-2,6-dimethyloctane. Interestingly, addition of a small amount (2.5%) of chiral 87 to stacks of achiral 88 in hexane induced a strong Cotton effect, similar in magnitude to that of the pure chiral derivative in hexane. This is an example of the sergeant and soldiers effect in a noncovalent assembly, and it is similar to the effects already established for stiff helical polymers like polyiso-... 

Qiana Fiber from rrans-diamino dicyclohexyl methane + dodecane dicarboxylic acid Du Pont, U.S. 

Qiana /ke-m- o/ (Trade name for silk like fiber material) Fiber from trans-diamino dicyclohexyl methane -I-dodecane dicarboxylic acid, manufactured by DuPont, U.S. New fibers should help the synthetics to capture an even bi er piece of the total. One of them is Qiana, introduced, after 20 years of experimentation, by E. I. du Pont de Nemours and Company, the largest U.S. producer of synthetic fibers. The new fiber has the appearance and feel of silk but has wrinkle-resistant and wash-and-wear properties that are as good or better than... 

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