Palladium-catalyzed [4+ 4] cycloadditions for highly diastereo-and enantioselective synthesis of functionalized benzo [b] oxocines

X Wang, J Yang, R Lv, P Song, D Ye, J Liu… - Organic Chemistry …, 2022 - pubs.rsc.org
Asymmetric cycloaddition reactions represent a powerful strategy for building up complex
molecular architectures, especially those with medium-sized rings. Herein, we disclose a …

[HTML][HTML] Access to high value sp 3-rich frameworks using photocatalyzed [2+ 2]-cycloadditions of γ-alkylidene–γ-lactams

D Kalaitzakis, I Kampouropoulos, M Sofiadis… - Chemical …, 2022 - pubs.rsc.org
By harnessing an energy transfer process, new photocatalyzed [2+ 2]-cycloadditions
occurring between γ-alkylidene–γ-lactams and unsaturated substrates have been …

Photocatalytic intramolecular [2+ 2] cycloaddition of indole derivatives via energy transfer: a method for late-stage skeletal transformation

Z Zhang, D Yi, M Zhang, J Wei, J Lu, L Yang… - Acs …, 2020 - ACS Publications
Visible light-promoted dearomative [2+ 2] cycloaddition of indole derivatives tethered with
olefins at the N1 position has been considered thermodynamically unfeasible due to the …

A platinum (II)‐based molecular cage with aggregation‐induced emission for enzymatic photocyclization of alkynylaniline

Z Wei, X Jing, Y Yang, J Yuan, M Liu… - Angewandte Chemie …, 2023 - Wiley Online Library
Enzymes facilitate chemical conversions through the collective activity of aggregated
components, but the marriage of aggregation‐induced emission (AIE) with molecular …

[HTML][HTML] Supramolecular-induced regiocontrol over the photochemical [4+ 4] cyclodimerization of NHC-or azole-substituted anthracenes

S Bai, LL Ma, T Yang, F Wang, LF Wang, FE Hahn… - Chemical …, 2021 - pubs.rsc.org
Thanks to the impressive control that microenvironments within enzymes can have over
substrates, many biological reactions occur with high regio-and stereoselectivity. However …

Highly Enantioselective 6π Photoelectrocyclizations Engineered by Hydrogen Bonding

WB Swords, H Lee, Y Park, F Llamas… - Journal of the …, 2023 - ACS Publications
Photochemical electrocyclization reactions are valued for both their ability to produce
structurally complex molecules and their central role in elucidating fundamental mechanistic …

Nickel-catalyzed regiodivergent asymmetric cycloadditions of α, β-unsaturated carbonyl compounds

S Cao, Z Ye, Y Chen, YM Lin, J Fang, Y Wang… - CCS …, 2022 - chinesechemsoc.org
Regiodivergent asymmetric cycloadditions from the same set of starting materials offer
interesting opportunities for rapid construction of optically active cyclic molecules with …

Photoelectrochemical asymmetric dehydrogenative [2 + 2] cycloaddition between C–C single and double bonds via the activation of two C(sp3)–H bonds

P Xiong, SI Ivlev, E Meggers - Nature Catalysis, 2023 - nature.com
The efficient generation of high structural complexity, which correlates with the number of
stereocentres, is an important objective in organic synthesis. Ideally, from a perspective of …

[HTML][HTML] Kinetic resolution of alkylidene norcamphors via a ligand-controlled umpolung-type 1, 3-dipolar cycloaddition

C Shen, Y Yang, L Wei, WW Dong, LW Chung… - Iscience, 2019 - cell.com
Development of a general catalytic and highly efficient method utilizing readily available
precursors for the regio-and stereoselective construction of bioactive natural-product …

Metal-free sequential [3+ 2]-dipolar cycloadditions using cyclooctynes and 1, 3-dipoles of different reactivity

BC Sanders, F Friscourt, PA Ledin… - Journal of the …, 2011 - ACS Publications
Although metal-free cycloadditions of cyclooctynes and azides to give stable 1, 2, 3-triazoles
have found wide utility in chemical biology and material sciences, there is an urgent need for …