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18064-99-8

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18064-99-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18064-99-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,0,6 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 18064-99:
(7*1)+(6*8)+(5*0)+(4*6)+(3*4)+(2*9)+(1*9)=118
118 % 10 = 8
So 18064-99-8 is a valid CAS Registry Number.

18064-99-8Relevant articles and documents

Cleavage∕cross-coupling strategy for converting β-O-4 linkage lignin model compounds into high valued benzyl amines via dual C–O bond cleavage

Jia, Le,Li, Chao-Jun,Zeng, Huiying

supporting information, (2021/10/29)

Lignin is the most recalcitrant of the three components of lignocellulosic biomass. The strength and stability of the linkages have long been a great challenge for the degradation and valorization of lignin biomass to obtain bio-fuels and commercial chemicals. Up to now, the selective cleavage of C–O linkages of lignin to afford chemicals contains only C, H and O atoms. Our group has developed a cleavage/cross-coupling strategy for converting 4-O-5 linkage lignin model compounds into high value-added compounds. Herein, we present a palladium-catalyzed cleavage/cross-coupling of the β-O-4 lignin model compounds with amines via dual C–O bond cleavage for the preparation of benzyl amine compounds and phenols.

Facile synthesis of 3-aryl benzofurans, 3-aryl benzothiophenes, 2-aryl indoles and their dimers

Umareddy, Pailla,Arava, Veera Reddy

, p. 2156 - 2167 (2019/07/04)

The preparation of 3-aryl benzofuran and benzothiophenes and their dimers at 2-position and, 2-aryl indoles and their 3-position dimers preparation is described.

Efficient synthetic approach to substituted benzo[b]furans and benzo[b]thiophenes by iodine-promoted cyclization of enaminones

Labarrios, Ehecatl,Jerezano, Alberto,Jimenez, Fabiola,Del Carmen Cruz, Maria,Delgado, Francisco,Zepeda, L. Gerardo,Tamariz, Joaquin

, p. 954 - 971 (2014/08/05)

An efficient synthetic approach to the substituted benzo[b]furan and benzo[b]thiophene scaffolds by iodine-mediated cyclization of the corresponding enaminones is described. This protocol was applied to a large series of these latter precursors to afford the respective benzoheterocycles substituted at the C-2 position by a carbonyl group functionality. A study of the factors that control this process reveals that the reactivity depends on the presence of electron-donor groups in the aryl ring of the aryloxycarbonylic and arylthiocarbonylic moieties.

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