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Journal ArticleDOI

Carbocycles from donor–acceptor cyclopropanes

TLDR
This review summarizes research directed towards the formation of carbocyclic adducts from donor-acceptor cyclopropanes and focuses on annulation and cycloaddition reactions mediated by Lewis or protic acid, bases, or thermal conditions.
Abstract
This review summarizes research directed towards the formation of carbocyclic adducts from donor–acceptor cyclopropanes. The focus of the review is on annulation and cycloaddition reactions (both inter- and intramolecularly) mediated by Lewis or protic acid, bases, or thermal conditions. Rearrangements resulting in carbocycles and those reactions mediated by transition metal catalysis have been excluded.

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Journal ArticleDOI

Donor-acceptor bicyclopropyl configuration-fixed by an additional trimethylene bridge: synthesis and Lewis acid-catalyzed tandem three-membered rings opening

TL;DR: A diastereoselective synthesis of donor-acceptor bicyclopropyl, 8-phenyldispiro[2.3.2.0]-nonane-1,1-dicarboxylate, was carried out, which treated with Lewis acids acts as a synthetic equivalent of cis 1,6-zwitterionic intermediates as mentioned in this paper.
Journal ArticleDOI

Synthesis of 1,5-Substituted Pyrrolidin-2-ones from Donor–Acceptor Cyclopropanes and Anilines/Benzylamines

TL;DR: In this article , a straightforward synthetic route to pharmacologically important 1,5-substituted pyrrolidin-2-ones from donor-acceptor cyclopropanes bearing an ester group as one of the acceptor substituents was developed.
Journal ArticleDOI

Ring-opening 1,3-arylboration of arylcyclopropanes mediated by BCl3

TL;DR: A ring-opening 1,3-arylboration of aryl cyclopropanes using BCl3 in the presence of arene nucleophiles is reported.
Journal ArticleDOI

Synthesis of Fluoroalkyl Cyclopentenes: Highly Diastereoselective Phosphine‐Catalyzed [3+2] Annulation of β‐Fluoroalkylvinyl Arylsulfones with Morita‐Baylis‐Hillman Carbonates

TL;DR: In this article , a phosphine-catalyzed [3+2] annulation of β-fluoroalkylvinyl arylsulfones and Morita-Baylis-Hillman carbonates was achieved to generate tetrasubstituted cyclopentene carboxylates with a fluoro-alkylated stereogenic center at C4.
Journal ArticleDOI

A Nazarov-Ene Tandem Reaction for the Stereoselective Construction of Spiro Compounds.

TL;DR: In this article, an unprecedented Nazarov cyclization tandem reaction is presented, terminating the oxyallyl cation by an ene-type reaction, and leading stereoselectively to bicyclic spiro compounds.
References
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Journal ArticleDOI

Telmisartan, Ramipril, or Both in Patients at High Risk for Vascular Events

TL;DR: Telmisartan was equivalent to ramipril in patients with vascular disease or high-risk diabetes and was associated with less angioedema and a increased risk of hypotensive symptoms.
Journal ArticleDOI

A new golden age for donor-acceptor cyclopropanes.

TL;DR: This Review highlights the appropriate tools for successfully employing donor-acceptor cyclopropanes in ring-opening reactions, cycloadditions, and rearrangements.
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