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613261-34-0

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613261-34-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 613261-34-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,1,3,2,6 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 613261-34:
(8*6)+(7*1)+(6*3)+(5*2)+(4*6)+(3*1)+(2*3)+(1*4)=120
120 % 10 = 0
So 613261-34-0 is a valid CAS Registry Number.

613261-34-0Downstream Products

613261-34-0Relevant articles and documents

Catalyst recognition of cis-1,2-diols enables site-selective functionalization of complex molecules

Sun, Xixi,Lee, Hyelee,Lee, Sunggi,Tan, Kian L.

, p. 790 - 795 (2013/09/23)

Carbohydrates and natural products serve essential roles in nature, and also provide core scaffolds for pharmaceutical agents and vaccines. However, the inherent complexity of these molecules imposes significant synthetic hurdles for their selective functionalization and derivatization. Nature has, in part, addressed these issues by employing enzymes that are able to orient and activate substrates within a chiral pocket, which increases dramatically both the rate and selectivity of organic transformations. In this article we show that similar proximity effects can be utilized in the context of synthetic catalysts to achieve general and predictable site-selective functionalization of complex molecules. Unlike enzymes, our catalysts apply a single reversible covalent bond to recognize and bind to specific functional group displays within substrates. By combining this unique binding selectivity and asymmetric catalysis, we are able to modify the less reactive axial positions within monosaccharides and natural products.

Regioselective monoacetylation of methyl pyranosides of pentoses and 6-deoxyhexoses by acetic anhydride in the presence of MoCl5

Evtushenko, Evgeny V.

, p. 1593 - 1599 (2007/10/03)

Convenient regioselective syntheses of 3-acetates of methyl pyranosides of α-L-rhamnose, α- and β-L-arabinose, α-D-fucose, α-D-lyxose, and β-D-ribose with good yields have been attained using MoCl5 as catalyst. Methyl β-L-rhamnopyranoside under this conditions gave 2-acetate. Copyright Taylor & Francis Group, LLC.

Enzymatic esterification and de-esterification of carbohydrates: synthesis of a naturally occurring rhamnopyranoside of p-hydroxybenzaldehyde and a systematic investigation of lipase-catalysed acylation of selected arylpyranosides

Bashir, Nazir B.,Phythian, Sara J.,Reason, Andrew J.,Roberts, Stanley M.

, p. 2203 - 2222 (2007/10/02)

The regiocontrolled esterification and de-esterification of mono- and di-saccharides is reviewed.New results involving the enzyme-catalysed regioselective acylation of ribo-110, arabino-112, 119, xylo-111, and rhamnopyranosides 116, 118 (as well as two ar

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