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Showing 1 to 5 of 5 for “"polyene cyclization"”.
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Enantioselective, Lewis base-catalyzed transformations: I. Polyene sulfenocyclization (preparative and mechanistic aspects) II. Sulfenofunctionalization of alkenyl boronates enabled by 1,2-boronate migration
… of a catalytic, enantioselective sulfenocyclization of polyenes (Chapter 2). Sulfenyl group transfer from a highly reactive, cationic, Lewis acid-base adduct to an unactivated alkene generates a cyclic thiiranium ion, which serves as the initiating event for a highly stereoselective …
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Studies toward the synthesis of celastrol and the late-stage hydroxylation of arenes mediated by 4,5-dichlorophthaloyl peroxide
… to the incompatibility of biologically inspired polyene cyclization strategies to assemble friedelin triterpenoids. As a result of these problems residing at the interface of chemistry and biology, a purely synthesis-based strategy for polyene cyclizations to rapidly construct the pentacyclic …
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Reagents and Strategies for the Total Synthesis of Halogenated Natural Products
… particular, the development of halonium-induced polyene cyclization, asymmetric halogenation, and medium-ring haloether formation would facilitate access to hundreds of halogenated natural products, but these reactions have traditionally proven challenging. Chapter 2. The Discovery of BDSB and …
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Total synthesis of marine terpenoids
… bifunctional reagent, and chemoselective aldol cyclization as key steps in the sequence. Additionally, this approach is versatile and can be exploited towards other norcembranoids. Overall, we achieved substantial progress towards the total synthesis of ineleganolide and enabled exploration of …
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Development of a radical Ti(III)-mediated cyclization cascade to synthesize trans-decalones from epoxynitriles
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms