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3,4-O-(R)-benzylidene-2-O-trifluoromethylsulphonyl-D-ribono-1,5-lactone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

104945-87-1

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104945-87-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104945-87-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,4 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 104945-87:
(8*1)+(7*0)+(6*4)+(5*9)+(4*4)+(3*5)+(2*8)+(1*7)=131
131 % 10 = 1
So 104945-87-1 is a valid CAS Registry Number.

104945-87-1Relevant academic research and scientific papers

SYNTHESIS OF 2R,3S,4R-DIHYDROXYPROLINE FROM D-RIBONOLACTONE

Dho, J. C.,Fleet, G. W. J.,Peach, J. M.,Prout, K.,Smith, P. W.

, p. 3203 - 3204 (1986)

A synthesis of 2R,3S,4R-dihydroxyproline is described in which an azide is introduced into C-2 position of D-ribonolactone with retention of configuration.

Synthesis of highly functionalized chiral nitriles by radical fragmentation of β-hydroxy azides. Convenient transformation of aldononitriles into 1,4- and 1,5-iminoalditols

Hernandez, Rosendo,Leon, Elisa I.,Moreno, Pilar,Riesco-Fagundo, Concepcion,Suarez, Ernesto

, p. 8437 - 8444 (2007/10/03)

The synthesis of highly functionalized nitriles by an alkoxyl radical fragmentation of cyclic β-hydroxy azides is described. The alkoxyl radicals were generated by reaction of the alcohols with (diacetoxyiodo)benzene and iodine under mild conditions compa

An efficient and concise entry to (-)-4,5-dihydroxy-d-threo-l norvaline. Formal synthesis of clavalanine

Ariza, Jesus,Font, Josep,Ortuno, Rosa M.

, p. 1979 - 1982 (2007/10/02)

The title amino acid (2) has been synthesized for the first time in a seven-step sequence from D-ribonolactone, in 20% overall yield. Since the N-carbamoyl derivative of (2) in its y-lactone form has been used to prepare clavalanine, a formal total synthe

Synthesis of (2R,3S,4R)-3,4-Dihydroxyproline from D-Ribonolactone; an Approach to the Synthesis of Polyfunctionalised D-Amino Acids from Sugar Lactones. X-Ray Molecular Structures of 2-Azido-3,4-O-(R)-benzylidene-2-deoxy-D-ribono-1,5-lactone, 2-Azido-2-deoxy-D-ribono-1,4-lactone, and ...

Baird, Peter D.,Dho, Jonathan C.,Fleet, George W. J.,Peach, Josephine M.,Prout, Keith,Smith, Paul W.

, p. 1785 - 1792 (2007/10/02)

A general approach to the synthesis of polyfunctionalised amino acids from sugar lactones, in wich nucleophilic displacement by azide ion of O-trifluoromethanesulphonyl esters adjacent to the lactone carbonyl is the key step, is discussed and is exemplified by the synthesis of the D-amino acid (2R,3S,4R)-3,4-dihydroxyproline from d-ribonolactone; unexpectedly, displacement of a triflate by azide in the C-2 position of ribonolactone occurs with retention of configuration.The X-ray crystal structures of 2-azido-3,4-O-(R)-benzylidene-2-deoxy-D-ribono-1,5-lactone, 2-azido-2-deoxy-D-ribono-1,4-lactone, and (2R,3S,4R)-3,4-dihydroxyproline are reported.I.r. spectroscopy does not discriminate reliably between 1,4-and 1,5-lactones, and X-ray crystallography is necessary to provide reliable structural information in this area.

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