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1256156-75-8

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1256156-75-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1256156-75-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,1,5 and 6 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1256156-75:
(9*1)+(8*2)+(7*5)+(6*6)+(5*1)+(4*5)+(3*6)+(2*7)+(1*5)=158
158 % 10 = 8
So 1256156-75-8 is a valid CAS Registry Number.

1256156-75-8Downstream Products

1256156-75-8Relevant articles and documents

N-Heterocycle-Stabilized Iodanes: From Structure to Reactivity

Boelke, Andreas,Lork, Enno,Nachtsheim, Boris J.

supporting information, p. 18653 - 18657 (2018/11/23)

Pseudocyclic aryl-λ3-iodanes are superior reagents for a variety of oxidative transformations due to a well-balanced relation between stability, solubility and reactivity. Their properties are substantially influenced by a dative interaction between a Lewis base, in general the oxygen atom of a carboxylic acid or an amide, and the central hypervalent iodine atom. This work presents the first systematic investigation of pseudocyclic N-heterocycle-stabilized iodanes (NHIs). The synthesis of these throughout shelf-stable solids is robust and can be achieved on a large scale. Their reactivity is highly tunable, depending on the stabilizing heterocycle. Solid state structures of selected derivatives are reported and their reactivity in a model oxygen transfer reaction is compared. Further derivatization reactions to N-heterocycle-stabilized pseudocyclic diaryliodonium salts and cyclic iodoso species are presented as well.

A ligand-free copper (1) catalysed intramolecular N-arylation of diazoaminobenzenes in PEG-water: An expeditious protocol towards regiospecific 1-aryl benzotriazoles

Mukhopadhyay, Chhanda,Tapaswi, Pradip Kumar,Butcher, Ray J.

supporting information; experimental part, p. 4720 - 4729 (2010/11/17)

An efficient and highly versatile method for the synthesis of diverse regiospecific 1-arylbenzotriazoles being important medicinal scaffolds, by the copper (1) catalysed intramolecular N-arylation of diazoaminobenzenes of 2-haloaryldiazonium salts in PEG-water has been developed. A very simple reaction protocol, large number of substrate affordability and excellent yields are the main features of this methodology.

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