Synthesis of Heterocycles via Multicomponent Reactions II by Géraldine Masson, Luc Neuville (auth.), Romano V. A. Orru,

By Géraldine Masson, Luc Neuville (auth.), Romano V. A. Orru, Eelco Ruijter (eds.)

Géraldine Masson, Luc Neuville ∙ Carine Bughin ∙ Aude Fayol ∙ Jieping Zhu Multicomponent Syntheses of Macrocycles Thomas J.J. Müller Palladium-Copper Catalyzed Alkyne Activation as an access to Multicomponent Syntheses of Heterocycles Rachel Scheffelaar ∙ Eelco Ruijter ∙ Romano V.A. Orru Multicomponent response layout innovations: in the direction of Scaffold and Stereochemical range Nicola Kielland ∙ Rodolfo Lavilla contemporary advancements in Reissert-Type Multicomponent Reactions Jitender B. Bariwal ∙ Jalpa C. Trivedi ∙ Erik V. Van der Eycken Microwave Irradiation and Multicomponent Reactions Irini Akritopoulou-Zanze ∙ Stevan W. Djuric purposes of MCR-Derived Heterocycles in Drug Discovery

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4 Pyrimidines by a Two-Step Sequence of Consecutive 3CR of (Hetero)Arenes, Oxalyl Chloride, Alkynes, and Cyclocondensation with Guanidinium Salts . . . . 5 Benzo[b][1,4]Diazepines by a Consecutive 3CR of Acid Chlorides, Alkynes, and Ortho-Phenylene Diamines . . . . . . . . . . . . . . . . . . . . . . 6 Benzo[b][1,5]Thiazepines by a Consecutive 3CR of Acid Chlorides, Alkynes, and Ortho-Amino Thiophenols . . . . . . . . . . . .

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We have closely investigated these novel types of push-pull chromophores with respect to their NLO and thermal properties [41]. Hyper Rayleigh scattering measurements at a fundamental of 1,500 nm have revealed that b-values are surprisingly large for such short dipoles (3a: b0333 ¼ 31 Â 10À30 esu; 3b: b0333 ¼ 29 Â 10À30 esu). With respect to the relatively low molecular mass, these chromophores display a rather favorable molecular figures of merit, b0m/Mw, where Mw is the molar mass. , glass transitions, a favorable property for composites in photo refractive materials.

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