PL410604A1 - Diastereoselective method for producing alpha-aminophosphonic acids - Google Patents

Diastereoselective method for producing alpha-aminophosphonic acids

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Publication number
PL410604A1
PL410604A1 PL410604A PL41060414A PL410604A1 PL 410604 A1 PL410604 A1 PL 410604A1 PL 410604 A PL410604 A PL 410604A PL 41060414 A PL41060414 A PL 41060414A PL 410604 A1 PL410604 A1 PL 410604A1
Authority
PL
Poland
Prior art keywords
alpha
configuration
aminophosphonic acids
solvent
general formula
Prior art date
Application number
PL410604A
Other languages
Polish (pl)
Other versions
PL231856B1 (en
Inventor
Tomasz Olszewski
Mateusz Majewski
Original Assignee
Politechnika Wrocławska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Wrocławska filed Critical Politechnika Wrocławska
Priority to PL410604A priority Critical patent/PL231856B1/en
Publication of PL410604A1 publication Critical patent/PL410604A1/en
Publication of PL231856B1 publication Critical patent/PL231856B1/en

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Abstract

Przedmiotem wynalazku jest wysoce diastereoselektywny sposób wytwarzania kwasów alfa-aminofosfonowych o konfiguracji R na atomie węgla alfa i wzorze ogólnym 1, w którym R1 stanowi grupą C1-C12 alkilową, C6-C14 arylową, która korzystnie podstawiona jest co najmniej jedną grupą C1-C6 alkilową, C1-C6 perhalogenoalkilową, C1-C6 alkoksylową lub atomem fluorowca. Sposób polega na tym, że w pierwszym etapie chiralny nukleofil fosforowy będący fosforową pochodną TADDOL-u poddaje się reakcji z odpowiednią tert-butylosulfoniminą o konfiguracji S na atomie siarki oraz bezwodnym K2CO3 w stosunku molowym 1:1:1 w CH2Cl2 w temperaturze pokojowej przez 12 godzin. Następnie odparowuje się rozpuszczalnik, wydzielając w wyniku chromatografii kolumnowej główny diastereoizomer alfa-aminofosfonianu, w którym R1 ma podane wyżej znaczenie, który w drugim etapie rozpuszcza się w toluenie, dodaje się 4M wodnego kwasu solnego, w stosunku 1 do 10 i ogrzewa się w temperaturze 80°C, przez 4 h. Odrzuca się warstwę organiczną, a z warstwy wodnej przez odparowanie rozpuszczalnika i zadanie pozostałości alkoholem etylowym wydziela się odpowiednie kwasy alfa-aminofosfonowe o konfiguracji R na atomie węgla alfa i wzorze ogólnym 1 w postaci krystalicznej.The subject of the invention is a highly diastereoselective process for the production of alpha-aminophosphonic acids with the R configuration on the alpha carbon atom and general formula 1, wherein R1 is a C1-C12 alkyl group, C6-C14 aryl group which is preferably substituted by at least one C1-C6 alkyl group , C1-C6 perhaloalkyl, C1-C6 alkoxy or halogen. The method consists in the fact that in the first stage a chiral phosphorus nucleophile being a phosphorus derivative of TADDOL is reacted with the appropriate tert-butylsulfonimine with the S configuration on the sulfur atom and anhydrous K2CO3 in a molar ratio of 1: 1: 1 in CH2Cl2 at room temperature for 12 hours. The solvent is then evaporated, separating by column chromatography the main alpha-aminophosphonate diastereomer, in which R1 is as defined above, which in the second stage dissolves in toluene, 4M aqueous hydrochloric acid is added in a ratio of 1 to 10 and heated at a temperature of 80 ° C, for 4 h. The organic layer is discarded, and the aqueous layer by evaporation of the solvent and treatment of the residue with ethyl alcohol separates the corresponding alpha-aminophosphonic acids with the R configuration on the alpha carbon atom and general formula 1 in crystalline form.

PL410604A 2014-12-22 2014-12-22 Diastereoselective method for producing alpha-aminophosphonic acids PL231856B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL410604A PL231856B1 (en) 2014-12-22 2014-12-22 Diastereoselective method for producing alpha-aminophosphonic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL410604A PL231856B1 (en) 2014-12-22 2014-12-22 Diastereoselective method for producing alpha-aminophosphonic acids

Publications (2)

Publication Number Publication Date
PL410604A1 true PL410604A1 (en) 2015-10-26
PL231856B1 PL231856B1 (en) 2019-04-30

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ID=54330484

Family Applications (1)

Application Number Title Priority Date Filing Date
PL410604A PL231856B1 (en) 2014-12-22 2014-12-22 Diastereoselective method for producing alpha-aminophosphonic acids

Country Status (1)

Country Link
PL (1) PL231856B1 (en)

Also Published As

Publication number Publication date
PL231856B1 (en) 2019-04-30

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