DE289426C - - Google Patents

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Publication number
DE289426C
DE289426C DENDAT289426D DE289426DA DE289426C DE 289426 C DE289426 C DE 289426C DE NDAT289426 D DENDAT289426 D DE NDAT289426D DE 289426D A DE289426D A DE 289426DA DE 289426 C DE289426 C DE 289426C
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tertiary
trichlorobutyl
crystallizes
well
hydrochloric acid
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DENDAT289426D
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German (de)
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Description

2. Der Dimethylglycintertiär trichter butylester wird durch Behandeln von 20 g Chloressigsäuretertiärtrichlorbutylester mit 30 ecm 27prozentiger wäßriger Dirnethylaminolösung im geschlossenen Gefäß bei iio° unter Schütteln dargestellt. Die so erhaltene wäßrige Lösung wird mit Natriumcarbonat alkalisch gemacht, mit Äther ausgeschüttelt, der Äther und nicht in Reaktion getretenes Dimethylamin abdestilliert. Der Rückstand stellt dann den freien Ester in Form eines Öles dar. Die Salze sind gut kristallisiert. So bildet z. B. das salzsaure Salz rhombische Plättchen vom Fp. 220°. Das Chlorhydrat ist in Wasser ebenso wie das salzsaure Salz des Diäthylglycintertiärtrichlorbutylesters spielend löslich.2. The dimethylglycintertiary butyl ester funnel is made by treating 20 g of tertiary chloroacetic acid trichlorobutyl ester with 30 ecm of 27 percent aqueous dirnethylamino solution shown in a closed vessel at iio ° with shaking. The aqueous thus obtained Solution is made alkaline with sodium carbonate, shaken out with ether, the ether and dimethylamine which has not reacted is distilled off. The residue then represents represents the free ester in the form of an oil. The salts are well crystallized. So z. B. the hydrochloric acid salt, rhombic platelets with a melting point of 220 °. The hydrochloride is in water just like the hydrochloric acid salt of diethyl glycine tertiary trichlorobutyl ester easily soluble.

Verfahren zur Darstellung von Aminosäureestern, darin bestehend, daß man Monohalogenessigsäuretrichlortertiärbutylester mit sekundären aliphatischen Aminen kondensiert. Process for the preparation of amino acid esters, consisting in that monohaloacetic acid trichlorotertiary butyl ester condensed with secondary aliphatic amines.

Claims (1)

Patent-Anspruch:Patent claim: ein Öl vor von charakteristischem Geruch und läßt sich im Vakuum bei etwa 142 bis 145 ° unter 20 mm Druck fast unzersetzt destillieren. Das salzsaure Salz schmilzt bei 167 bis 168 °; es kristallisiert sehr gut und ist in Wasser sehr leicht löslich. Das Platinsalz kristallisiert in schönen Plättchen vom Fp. 212 °.
■ Der zur Darstellung des obigen Glycinesters verwandte Chloressigsäuretertiärtrichlorbutylester wird durch Kondensation von Chloracetylchlorid mit dem tertiären Trichlorbutylalkohol gewonnen; es ist eine Verbindung vom Smp. 490, die in hellen Nädelchen gut kristallisiert.
an oil with a characteristic odor and can be distilled almost undecomposed in vacuo at about 142 to 145 ° under 20 mm pressure. The hydrochloric acid salt melts at 167 to 168 °; it crystallizes very well and is very easily soluble in water. The platinum salt crystallizes in beautiful platelets with a melting point of 212 °.
The tertiary trichlorobutyl chloroacetate used to prepare the above glycine ester is obtained by condensation of chloroacetyl chloride with the tertiary trichlorobutyl alcohol; it is a compound of mp. 49 0, the well crystallized in bright needles.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234571A (en) * 1921-12-19 1993-08-10 Microparts Gmbh Stepped mold inserts, a process for the manufacture of stepped mold inserts, and stepped microstructural bodies with the mold inserts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234571A (en) * 1921-12-19 1993-08-10 Microparts Gmbh Stepped mold inserts, a process for the manufacture of stepped mold inserts, and stepped microstructural bodies with the mold inserts

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