A comprehensive survey upon diverse and prolific applications of chitosan-based catalytic systems in one-pot multi-component synthesis of heterocyclic rings

H Mousavi - International Journal of Biological Macromolecules, 2021 - Elsevier
Heterocyclic compounds are among the most prestigious and valuable chemical molecules
with diverse and magnificent applications in various sciences. Due to the remarkable and …

Impact of microwaves on organic synthesis and strategies toward flow processes and scaling up

K Martina, G Cravotto, RS Varma - The Journal of Organic …, 2021 - ACS Publications
Microwave-assisted organic synthesis has been widely studied and deliberated, opening up
some controversial issues as well. Nowadays, microwave chemistry is a mature technology …

Unveiling the chemistry and synthetic potential of catalytic cycloaddition reaction of allenes: a review

S Sikandar, AF Zahoor, A Ghaffar, MN Anjum… - Molecules, 2023 - mdpi.com
Allenes with two carbon–carbon double bonds belong to a unique class of unsaturated
hydrocarbons. The central carbon atom of allene is sp hybridized and forms two σ-bonds …

A Sequential Activation of Alkyne and C–H Bonds for the Tandem Cyclization and Annulation of Alkynols and Maleimides through Cooperative Sc (III) and Cp*-Free …

RK Gurram, M Rajesh, MK Reddy Singam… - Organic …, 2020 - ACS Publications
[4+ 2] oxidative Diels–Alder reaction of readily available alkynols with maleimide is achieved
for the rapid access of pthalimide-fused multicyclic compounds. The reaction is proposed to …

Ni-catalyzed propargylic substitution reaction: A general and versatile tool to assemble axially chiral phosphorus-containing allenes

X Gu, KY Ngai, W Wang, B Li, JJ Wang - Chem Catalysis, 2024 - cell.com
A general and versatile Ni-catalyzed propargylic substitution of propargyl acetates has been
developed using a broad range of phosphorus nucleophiles, including phosphine oxides …

Three-component borylallenylation of alkynes: Access to densely boryl-substituted ene-allenes

SH Yu, TJ Gong, Y Fu - Organic letters, 2020 - ACS Publications
Ene-allenes serve as versatile building blocks in organic synthesis, and the development of
their efficient preparation is valuable. Herein the synthesis of boryl-substituted ene-allenes …

Photoexcited Palladium-Catalyzed Synthesis of Chiral Allenes from Alkynes via Isomerization and Deracemization Sequence

C Song, S Yu - ACS Catalysis, 2024 - ACS Publications
A photoexcited palladium-catalyzed synthesis of chiral allenes from alkynes via a sequence
of isomerization and deracemization is disclosed. This method offers an efficient and cost …

Allenes in Diels–Alder Cycloadditions

H Hopf, MS Sherburn - Synthesis, 2022 - thieme-connect.com
For a long time, allenes—and cumulenic systems in general—played a relatively minor role
in Diels–Alder cycloadditions. This situation has changed, since allenes are more readily …

Synthesis of Chiral Nine‐Membered N‐Heterocycles through Silver(I)‐Promoted Cycloaddition and Rearrangement from N‐Vinyl‐α,β‐Unsaturated Nitrones with …

XT Qin, N Zou, XL Cheng, C Liang… - Advanced Synthesis & …, 2022 - Wiley Online Library
A variety of chiral nine‐membered N‐heterocycles were prepared in moderate to good
yields with high diastereoselectivity through a silver (I)‐catalyzed [3+ 2] cycloaddition and [3 …

Synthesis and Transformation of Bis (silyl)-Substituted Conjugated Vinylallene Compounds

YS Qian, JB Zhao, YH Xu - Organic Letters, 2023 - ACS Publications
We develop a copper-catalyzed disilylation of polysubstituted pent-1-en-4-yn-3-yl acetate
derivatives, which in one pot furnishes the bis (silyl)-substituted vinylallenes in moderate …