The Formation of Csp
            <sup>2</sup>
            S and Csp
            <sup>2</sup>
            Se Bonds by Substitution and Addition Reactions Catalyzed by Transition Metal Complexes

Beletskaya, I. P.; Ananikov, Valentine P.

doi:10.1002/9783527633388.ch3

Catalyzed Carbon‐Heteroatom Bond Formation 2010

DOI: 10.1002/9783527633388.ch3

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The Formation of Csp ² S and Csp ² Se Bonds by Substitution and Addition Reactions Catalyzed by Transition Metal Complexes

I. P. Beletskaya

Valentine P. Ananikov

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2019

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Synthesis of benzo[d]imidazo[2,1-b]benzoselenoazoles: Cs₂CO₃-mediated cyclization of 1-(2-bromoaryl)benzimidazoles with selenium

Matsumura¹,

Kitamura²,

Yamauchi³

et al. 2019

Beilstein J. Org. Chem.

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The synthesis of benzimidazo[2,1-b]benzoselenoazoles is described. The novel ring-closure reaction of 1-(2-bromoaryl)benzimidazoles with Se powder is promoted by Cs2CO3 (2 equiv) in DMF at 150 °C. Moreover, the obtained tetracyclic heterocycles are all novel compounds. Single-crystal X-ray analysis of the parent benzimidazo[2,1-b]benzoselenoazole revealed that the tetracyclic ring is almost planar. Absorption spectroscopy data of the benzimidazo[2,1-b]benzoselenoazoles showed the λmax was dependent on the number of rings.

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Synthesis of benzo[d]imidazo[2,1-b]benzoselenoazoles: Cs₂CO₃-mediated cyclization of 1-(2-bromoaryl)benzimidazoles with selenium

Matsumura¹,

Kitamura²,

Yamauchi³

et al. 2019

Beilstein J. Org. Chem.

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show abstract

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The Formation of Csp ² S and Csp ² Se Bonds by Substitution and Addition Reactions Catalyzed by Transition Metal Complexes

Cited by 1 publication

References 213 publications

Synthesis of benzo[d]imidazo[2,1-b]benzoselenoazoles: Cs₂CO₃-mediated cyclization of 1-(2-bromoaryl)benzimidazoles with selenium

Synthesis of benzo[d]imidazo[2,1-b]benzoselenoazoles: Cs₂CO₃-mediated cyclization of 1-(2-bromoaryl)benzimidazoles with selenium

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The Formation of Csp 2 S and Csp 2 Se Bonds by Substitution and Addition Reactions Catalyzed by Transition Metal Complexes

Cited by 1 publication

References 213 publications

Synthesis of benzo[d]imidazo[2,1-b]benzoselenoazoles: Cs2CO3-mediated cyclization of 1-(2-bromoaryl)benzimidazoles with selenium

Synthesis of benzo[d]imidazo[2,1-b]benzoselenoazoles: Cs2CO3-mediated cyclization of 1-(2-bromoaryl)benzimidazoles with selenium

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Product

Resources

About

The Formation of Csp ² S and Csp ² Se Bonds by Substitution and Addition Reactions Catalyzed by Transition Metal Complexes

Synthesis of benzo[d]imidazo[2,1-b]benzoselenoazoles: Cs₂CO₃-mediated cyclization of 1-(2-bromoaryl)benzimidazoles with selenium

Synthesis of benzo[d]imidazo[2,1-b]benzoselenoazoles: Cs₂CO₃-mediated cyclization of 1-(2-bromoaryl)benzimidazoles with selenium