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(2-benzylcarbamoyl-ethyl)-carbamic acid 9H-fluoren-9-ylmethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

219803-84-6

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219803-84-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219803-84-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,8,0 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 219803-84:
(8*2)+(7*1)+(6*9)+(5*8)+(4*0)+(3*3)+(2*8)+(1*4)=146
146 % 10 = 6
So 219803-84-6 is a valid CAS Registry Number.

219803-84-6Relevant academic research and scientific papers

Acetophenone-based linker for solid phase synthesis of secondary amides and sulfonamides on the multipin(TM) support

Bui, Chinh T.,Bray, Andrew M.,Ercole, Francesca,Pham, Yen,Rasoul, Firas A.,Maeji, N. Joe

, p. 3471 - 3474 (1999)

A new and simple linker has been developed for synthesis of secondary amides and sulfonamides. This application is based on the reductive amination reaction between the acetophenone subunit of the linker and a wide range of primary amines including aliphatic and aromatic amines. Cleavage is effected under mild acidic conditions (20% TFA/DCM) to release the products in good yield and purity.

Efficiencies of reductive amination reactions on different solid supports

Bui, Chinh T.,Rasoul, Firas A.,Ercole, Francesca,Pham, Yen,Maeji, N. Joe

, p. 9279 - 9282 (1998)

Reductive amination on resins derivatized with 5-(4-formyl-3,5- dimethoxyphenoxy)valeric acid linker (Barany linker, 1)1 has been reported to be less effective than on resin derivatized with its monomethoxy analog (2)2 due to steric hindrance of the extra methoxy functional group within the molecule.3 A study of these linkers indicate that the origins of such data is also related to the spacer and solid support used in the study. Depending on the linker, spacer and solid phase, yields from 10% to 75% were obtained under exactly the same reaction conditions.

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