Carboamination And Alkylative Cyclization With C-N Bond Formation In Stereoselective Syntheses

Ghorai, Manas K. ; Halder, Sandipan ; Samanta, Sauvik (2013) Carboamination And Alkylative Cyclization With C-N Bond Formation In Stereoselective Syntheses Stereoselective Synthesis of Drugs and Natural Products Stereoselective Synthesis by Bond Formation . John Wiley & Sons, Inc..

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The carboamination reaction can be considered an important and fascinating tool for atom‐economic and convergent construction toward the functionalized N‐containing cyclic compounds. Because the aza‐cycle is frequently found in almost all members of the alkaloid family with immense synthetic and pharmacological activities, the formation of this ring system is a highly demanding task for synthetic organic chemists. As a result, several rational techniques have been developed including intramolecular SN2 reactions, reductive amination reactions, conjugate addition reactions, metal‐ and acid‐catalyzed cyclizations, and ring‐closing olefin metathesis reactions. Despite the many available routes, the carboamination strategy could be one of the best techniques considering stereoselectivity and the step economic path toward the formation of ring compounds in an elegant way.Alkylative cyclization with C-N bond formation (N‐alkylation) is one of the most important methods in organic synthesis for the construction of aza‐cycles. Many well‐known name reactions (e.g., aza‐Diels‐Alder, aza‐Michael, aza‐Mannich, aza‐Henry reactions, etc.), which are generally being employed in the intramolecular C-N bond formation step, can be treated as C-N alkylative cyclization. It is an extremely powerful method for the stereoselective synthesis of N‐heterocycles like aziridines, azetidines, lactams, pyrrolidines, piperidines, amino sugars, and many more, which are the basic structural units present in many natural products and biologically active compounds.

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ID Code:117273
Deposited On:15 Apr 2021 11:04
Last Modified:15 Apr 2021 11:04

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