Synthesis of Multisubstituted Cyclopentadiene Derivatives from 3, 3-Disubstituted Cyclopropenes and Internal Alkynes Catalyzed by Low-Valent Niobium Complexes
T Akiyama, T Kusamoto, K Mashima… - Journal of the American …, 2024 - ACS Publications
A low-valent niobium species generated from NbCl5 and 1-methyl-3, 6-bis (trimethylsilyl)-1,
4-cyclohexadiene (Si-Me-CHD) in combination with PPh3 catalyzed a [2+ 2+ 1] …
4-cyclohexadiene (Si-Me-CHD) in combination with PPh3 catalyzed a [2+ 2+ 1] …
Molybdenum-catalyzed carbonyl–carbonyl olefination reaction for heterocycle syntheses
YQ Dong, XN Shi, LY Cao, J Bai… - Organic Chemistry …, 2023 - pubs.rsc.org
The carbonyl–carbonyl olefination reaction promoted by (over) stoichiometric amounts of
titanium and metal reductants, which is known as the McMurry reaction, represents an …
titanium and metal reductants, which is known as the McMurry reaction, represents an …
An Asynchronous Concerted Mechanism and Its Origin in Lewis Acid‐Mediated Carbonyl‐Olefin [2+ 2] Cycloaddition
YY Li, SQ Zhang, X Hong - Chemistry–An Asian Journal, 2023 - Wiley Online Library
The concerted mechanism of thermal BBr3‐mediated [2+ 2] carbonyl‐olefin cycloaddition is
intriguing considering the conflict against the Woodward–Hoffmann rule. In this work, we …
intriguing considering the conflict against the Woodward–Hoffmann rule. In this work, we …