Di-n-pentylamine

It can be seen that an agitated medium is markedly favourable to the TON-type zeolite, the FER-type zeolite being less sensitive to this factor. The presence of seeds increases the crystallization rate for both zeolites. FER-type zeolites containing Co2 or Mg2 could be prepared with Co2 or Mg2 - ezchanged aluminosilicate gels (20). In addition to the above-mentioned templates for TON-type zeolites, two other amines, di-n pentylamine and 1,4-diamino n-pen-tane, yield the same structure. 

Add di-n-pentylamine to solution (3) with stirring, and then stir the solution for 30 min ... 

ATO and AFO type structures. At present the industrial process of lube oil dewaxing (ChevronTexaco) is realized on bifunctional catalyst with acidic SAPO-11 (AEL) component. Few examples in the literature devoted to comparative study of AEL-, ATO- and AFO-SAPO materials in hydroisomerization reaction are based on a single specimen of each catalyst, sometimes not phase-pure and often prepared by exotic or undefined method. Recently the authors found a new method for selective and reproducible synthesis of SAPO-31 (ATO type structure) materials in the presence of di-n-pentylamine and showed hydroisomerization efficiency of catalysts based on these systems [3,4]. 

Synonyms Diamylamine Dipentylamine Di-n-pentylamine 1-Pentanamine, N-pentyl N-Pentyl-1 -pentanamine Pentyl pentylamine... 

N-Pentyl-1-pentanamine. See Di-n-amylamine Pentyl pentanoate. See Amyl valerate Pentyl pentylamine. See Di-n-amylamine p-t-Pentylphenol. See p-t-Amylphenol Pentylphenylacetate. See Amyl phenylacetate... 

Sterically unhindered amines such as pyrrolidine, piperidine, n-butylamine, and neo-pentylamine, etc., all react faster than Py, and the reaction exhibits second-order kinetics, indicating that the rate-determining step involves the direct reaction between the dimer and the amine. Sterically more-hindered amines, such as fert-butylamine, di-n-butylamine, and quinuclidine, exhibit first-order... 

Pyridine can become involved in nucleophilic substitution when very reactive triflates are being synthesized. One approach to minimize this disadvantage is to replace it with ster-ically hindered bases, such as 2,6-di-r-butyl-4-methylpyridine, 2,4,6-trisubstituted pyrimidines, or nonnucleophilic aliphatic amines (usually N,(V-diisobutyl-2,4-dimethyl-3-pentylamine). No salt formation appears to take place under these conditions. The triflic anhydride seems to be the direct triflating agent and the base only neutralizes the triflic acid formed. Numerous alkyl triflates have been prepared in the literature by the above method. Some recent examples of triflates prepared from alcohols are illustrated in eqs 2 and 3. As an exception, 2,6-dinitrobenzyl alcohol does not react with Tf20 although similar sulfonyl esters could be prepared. ... 

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