Synlett 2024; 35(20): 2441-2446
DOI: 10.1055/a-2384-6736
letter
Special Issue to Celebrate the 75th Birthday of Prof. B. C. Ranu

Design and Synthesis of Out/Out, Out/In, and In/In Epoxides in Polycyclic Cage Frameworks

Sambasivarao Kotha
a   Department of Chemistry, Indian Institute of Technology-Bombay, Powai, 400076, India
b   Department of Chemistry, Sunandan Divatia School of Science, SVKM’s NMIMS (Deemed-to-be) University, Vile Parle (West), Mumbai, 400056, India
,
Mohammad Salman
a   Department of Chemistry, Indian Institute of Technology-Bombay, Powai, 400076, India
› Institutsangaben
M.S. thank the University Grants Commission (UGC), New Delhi for the award of a research fellowship.


Abstract

We report a useful synthetic approach to assemble in/in epoxide, in/out epoxide, and out/out epoxide in cage systems using the Corey–Chaykovsky reaction and the Peterson olefination as key steps. In this regard, a variety of pentacycloundecane (PCUD) based cage compounds containing oxirane rings with diverse stereochemical disposition were synthesized via a simple synthetic sequence. Five cage diones were used for this purpose, and the starting cage diones were prepared with easily accessible starting materials such as 1,4-hydroquinone derivatives and cyclopentadiene. Here, we have used the Diels–Alder (DA) reaction, a [2+2] photocycloaddition, the Corey–Chaykovsky reaction, and the Peterson olefination as crucial steps to prepare the target molecules.

Supporting Information



Publikationsverlauf

Eingereicht: 02. Juli 2024

Angenommen nach Revision: 12. August 2024

Accepted Manuscript online:
12. August 2024

Artikel online veröffentlicht:
10. September 2024

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