Visible-light-induced 1, 6-enynes triggered C–Br bond homolysis of bromomalonates: solvent-controlled divergent synthesis of carbonylated and hydroxylated …

J Liu, S Tang, S Wang, M Cao, J Zhao… - The Journal of …, 2022 - ACS Publications
Visible-light-induced 1, 6-enyne-triggered C–Br bond homolysis of bromomalonates has
been developed. This transition-metal-free, photocatalyst-free, and oxidant-and additive-free …

Visible-light-driven photocatalytic Kharasch reaction of phenol/arylamine-linked 1, 6-enynes with perhalogenated methane

J Xiaoshuang, F Rong, W Shuliang… - Chinese Journal of …, 2022 - sioc-journal.cn
Radical annulative carbohalofunctionalization of 1, n-enynes via atom transfer processes
constitutes an efficient and practical synthetical strategy for accessing halogenated cyclic …

Manganese-and borane-mediated synthesis of isobenzofuranones from aromatic esters and oxiranes via C–H bond activation

S Sueki, Z Wang, Y Kuninobu - Organic letters, 2016 - ACS Publications
A manganese-and borane-mediated synthesis of isobenzofuranones from esters and
oxiranes is developed. The reaction proceeded at aromatic, heteroaromatic, and olefinic C …

N-Haloimide-enabled halogenation via halogen-bond-assisted C–C activation of alkanols

Y Geng, Y Ma, R Huang, X Li, S Yu - Green Chemistry, 2023 - pubs.rsc.org
The selective halogenation of the inert C–C bonds of alcohol-based feedstock is of
tremendous significance in synthetic chemistry. Previous halogenation usually requires a …

[HTML][HTML] Visible-light-induced bromoetherification of alkenols for the synthesis of β-bromotetrahydrofurans and-tetrahydropyrans

R Lin, H Sun, C Yang, Y Yang… - Beilstein Journal of …, 2015 - beilstein-journals.org
A visible-light-induced photoredox-catalyzed bromoetherification of alkenols is described.
This approach, with CBr 4 as the bromine source through generation of bromine in situ …

Dual Cobalt and Photoredox Catalysis Enabled Redox‐Neutral Annulation of 2‐Propynolphenols

Y Zhu, YQ He, WF Tian, M Wang… - Advanced Synthesis …, 2021 - Wiley Online Library
A hydroxyl‐assisted, organophotoredox/cobalt dual catalyzed annulation of 2‐
propynolphenols to form 2‐hydroxymethyl‐benzo [b] furans was developed by employing 1 …

Metal-free and site-selective α-C–H functionalization of tetrahydrofuran enabled by the photocatalytic generation of bromine radicals

CM Zhu, RB Liang, Y Xiao, W Zhou, QX Tong… - Green …, 2023 - pubs.rsc.org
The first example of using commercially available and cheap nBu4NBr as a cocatalyst,
which is photoactivated by 4-CzIPN, to selectively activate the α-C–H bond of …

Photocatalytic Dehydroformylation of Benzyl Alcohols to Arenes

D Kolb, AA Almasalma, M Morgenstern… - …, 2023 - Wiley Online Library
In the last decades, many C− C bond‐forming reactions have been developed, whereas less
attention has been paid to the design of strategies involving C− C bond cleavage. We report …

Visible light mediated reductive cleavage of C–O bonds accessing α-substituted aryl ketones

E Speckmeier, C Padie, K Zeitler - Organic letters, 2015 - ACS Publications
C–O σ-bonds in multifaceted benzoin derivatives can be effectively cleaved as acetates
using catalytic amounts of [Ru (bpy) 3] Cl2 as photoredox catalyst in combination with …

Visible Light Promoted Brominative Dearomatization of Biaryl Ynones to Spirocycles

B Roy, P Kuila, D Sarkar - The Journal of Organic Chemistry, 2023 - ACS Publications
Bromine induced spiro cyclization of biaryl ynones facilitated the synthesis of spiro [5, 5]
trienones suitable for extended functionality at the C (3′) position. Herein, a step-economic …