Seminar by Prof. Santanu Mukherjee (IISc. Bangalore) on "Symmetry Breaking Routes to (Un)Natural Ladderanes and Beyond".

08 May 2026
Seminar Room # 350, second floor annex

Speaker: Prof. Santanu Mukherjee
Department of Organic Chemistry
Indian Institute of Science, Bangalore - 560012,
INDIA

Title: "Symmetry Breaking Routes to (Un)Natural Ladderanes
and Beyond".

Day and Date: Friday, May 08, 2026

Time: 11.30 am.

Venue: Room no. 350, Chemistry Department
Second floor, Annex
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Hosted by Prof. Debabrata Maiti

Talk Title : "Symmetry Breaking Routes to (Un)Natural Ladderanes and Beyond".
Abstract
Breaking symmetry to generate asymmetry, commonly termed desymmetrization, is a remarkably powerful strategy for building molecular complexity. During the past few years, we have developed a number of organocatalytic enantioselective desymmetrization reactions including formal C(sp2)‒H alkylation1 and de novo construction of (hetero)arenes.2 We subsequently applied these reactions to the enantioselective synthesis complex targets. Naturally occurring ladderane phospholipids represent such target, which provided us with the motivation to develop some of these enantioselective desymmetrization reactions. This talk will focus on the application of our desymmetrizing C(sp2)‒H alkylation reaction to [3]-ladderanol,3[5]-ladderanoic4 acid as well as their unnatural analogues in an effort to unravel their biosynthetic hypothesis. In addition, our recent work on the enantioselective synthesis of an unnatural benzoanalogue of [3]-ladderanol through the application of our newly developed alkoxy-directed dienamine catalysis5 will also be discussed.