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L-alanine benzhydryl ester hydrotosylate is a complex organic compound that serves as a valuable intermediate in the synthesis of various pharmaceuticals and agrochemicals. It is derived from L-alanine, an essential amino acid, and benzhydryl ester, a protecting group used in organic synthesis. The hydrotosylate form indicates that it has undergone a reaction with tosyl chloride, a common reagent in organic chemistry, to introduce a tosyl group. This modification can enhance the reactivity or stability of the molecule, making it a versatile building block for the development of new drugs and other chemical products. The compound's structure and properties make it a key component in the creation of complex molecules, highlighting its importance in the field of medicinal and synthetic chemistry.

5042-84-2

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5042-84-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5042-84-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,4 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5042-84:
(6*5)+(5*0)+(4*4)+(3*2)+(2*8)+(1*4)=72
72 % 10 = 2
So 5042-84-2 is a valid CAS Registry Number.

5042-84-2Downstream Products

5042-84-2Relevant academic research and scientific papers

A Novel Preparation of Amino Acid Diphenylmethyl Esters and Their Application in Peptide Synthesis

Barlos, Kleomenis,Kallitsis, John,Mamos, Petros,Patrianakou, Stella,Stavropoulos, Georg

, p. 633 - 636 (2007/10/02)

Trityl amino acid diphenylmethyl esters 2 were prepared by Mitsunobu condensation of tritylamino acids 1 with diphenylmethanol using excess triphenylphosphane and diethyl azodicarboxylate.The esters 2 were converted into the corresponding p-toluenesulfonates 3 on treatment with p-toluenesulfonic acid.The removal of the N-trityl group in the presence of the diphenylmethyl ester group is studied by the preparation of leucine-enkephalin (12).Best selectivity is obtained when 1-hydroxybenzotriazole in trifluoroethanol is used as detritylation reagent.

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