Synlett 2023; 34(06): 507-534
DOI: 10.1055/a-1894-8417
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Chemical Synthesis and Catalysis in India

Synthesis of Heterocyclic Scaffolds via Prins, Oxonium-Ene and Related Cyclization Reactions

Anil K. Saikia
I am grateful to the Council of Scientific and Industrial Research (CSIR), New Delhi, (Grant Nos. 01(1809)/02/EMR-II, 01(2332)/09/EMR-II, 02/0159/13/EMR-II, 02/(0364)/19/EMR-II and 02(0364)19/EMR-II), the Department of Science and Technology (DST), New Delhi, (Grant No. SR/S1/OC-33/2007), the Science and Engineering Research Board (SERB), New Delhi, (Grant No. EMR/2016/006411) for financial support, and the Centre of Excellence-Frontier Areas of Science and Technology (COE-FAST) Program of the Ministry of Human Resources Development (MHRD), Ministry of Education (Grant No. 5-5/2014-TS VII) and the North East Centre for Biological Sciences and Healthcare Engineering (NECBH), Indian Institute of Technology Guwahati (Grant No. BT/COE/34/SP28408/2018) for NMR and XRD facilities.


Abstract

A variety of oxygen, nitrogen and sulfur heterocyclic compounds are synthesized via one-pot multicomponent Prins, aza-Prins, thia-Prins, oxonium-ene, iminium-ene and thionium-ene cyclization reactions. The reactions proceeds with high diastereo- and regioselectivity. Importantly, C–C, C–N, C–O and C–S bonds are formed in a singsle step. These procedures are extended for the synthesis of biologically active molecules and natural products.

1 Introduction

2 Prins Cyclization Reactions

3 Oxonium-Ene Cyclization Reactions

4 Conclusion



Publikationsverlauf

Eingereicht: 29. Mai 2022

Angenommen nach Revision: 08. Juli 2022

Accepted Manuscript online:
08. Juli 2022

Artikel online veröffentlicht:
19. August 2022

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