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43188-65-4

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43188-65-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 43188-65-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,1,8 and 8 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 43188-65:
(7*4)+(6*3)+(5*1)+(4*8)+(3*8)+(2*6)+(1*5)=124
124 % 10 = 4
So 43188-65-4 is a valid CAS Registry Number.

43188-65-4Relevant articles and documents

Asymmetric Synthesis of β2-Aryl Amino Acids through Pd-Catalyzed Enantiospecific and Regioselective Ring-Opening Suzuki–Miyaura Arylation of Aziridine-2-carboxylates

Takeda, Youhei,Matsuno, Tetsuya,Sharma, Akhilesh K.,Sameera,Minakata, Satoshi

, p. 10226 - 10231 (2019)

A Pd-catalyzed enantiospecific and regioselective ring-opening Suzuki–Miyaura arylation of aziridine-2-carboxylates was developed. The cross-coupling allows for the asymmetric preparation of enantioenriched β2-aryl amino acids, starting from co

New methodology for the preparation of N-tosyl aziridine-2-carboxylates

Marzorati, Liliana,Barazzone, Giovana C.,Bueno Filho, Marco A.,Wladislaw, Blanka,Di Vitta, Claudio

, p. 6509 - 6513 (2008/02/13)

N-Tosyl aziridine-2-carboxylate methyl esters were prepared from methyl N-tosyl-l-serinate or N-tosyl-l-threoninate, tosyl chloride, and K2CO3, under phase-transfer catalysis (PTC) conditions. The same methodology, as applied to the

Reduction of 2-acylaziridines by samarium(II) iodide. An efficient and regioselective route to β-amino carbonyl compounds

Molander, Gary A.,Stengel, Peter J.

, p. 8887 - 8912 (2007/10/03)

A convenient method for the reduction of 2-acylaziridines, aziridine-2- carboxylates and aziridine-2-carboxamides is described. The reduction of all of the substrates examined was extremely rapid and highly regioselective, giving rise to β-amino carbonyl compounds. This method appears to be general for all of the classes of aziridines mentioned above, and also tolerates a variety of nitrogen protecting groups.

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