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4265-14-9

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4265-14-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4265-14-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,6 and 5 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4265-14:
(6*4)+(5*2)+(4*6)+(3*5)+(2*1)+(1*4)=79
79 % 10 = 9
So 4265-14-9 is a valid CAS Registry Number.

4265-14-9Relevant articles and documents

Synthesis of Indole/Benzofuran-Containing Diarylmethanes through Palladium-Catalyzed Reaction of Indolylmethyl or Benzofuranylmethyl Acetates with Boronic Acids

Arcadi, Antonio,Calcaterra, Andrea,Chiarini, Marco,Fabrizi, Giancarlo,Fochetti, Andrea,Goggiamani, Antonella,Iazzetti, Antonia,Marrone, Federico,Marsicano, Vincenzo,Serraiocco, Andrea

supporting information, p. 741 - 753 (2021/11/26)

The palladium-catalyzed synthesis of indole/benzofurancontaining diarylmethanes starting from indolylmethyl or benzofuranylmethyl acetates with boronic acids has been investigated. The success of the reaction is influenced by the choice of precatalyst: with indolylmethyl acetates the reaction works well with [Pd(η3-C3H5)Cl]2/XPhos while with benzofuranylmethyl acetates Pd2(dba)3/XPhos is more efficient. The good to high yields and the simplicity of the experimental procedure make this protocol a versatile synthetic tool for the preparation of 2- and 3-substituted indoles and 2-benzo[b]furans. The methodology can be advantageously extended to the preparation of a key precursor of Zafirlukast.

Construction of Di(hetero)arylmethanes Through Pd-Catalyzed Direct Dehydroxylative Cross-Coupling of Benzylic Alcohols and Aryl Boronic Acids Mediated by Sulfuryl Fluoride (SO2F2)

Zhao, Chuang,Zha, Gao-Feng,Fang, Wan-Yin,Rakesh,Qin, Hua-Li

, p. 1801 - 1807 (2019/02/07)

A practical Pd-catalyzed direct dehydroxylative coupling of (hetero)benzylic alcohols with (hetero)arylboronic acids for the constructions of di(hetero)arylmethane derivatives under SO2F2 was described. This new method provided a strategically distinct approach to di(hetero)arylmethane derivatives from readily available and abundant benzylic alcohols under mild condition.

Synthesis of 2-substituted benzofuran derivatives by the palladium-catalyzed intermolecular coupling of 2-fluoroallylic acetates with phenols

Udagawa, Takumi,Kogawa, Masaki,Tsuchi, Yukiko,Watanabe, Hirotaka,Yamamoto, Mitsuaki,Kawatsura, Motoi

supporting information, p. 227 - 230 (2016/12/28)

We investigated the intermolecular coupling reaction of 2-fluoroallylic acetates with simple phenols by the [Pd(C3H5)Cl]2, DPPF, and KHMDS at 100?°C for 16?h, and succeeded in obtaining 2-substituted benzofuran derivatives

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