Phthalides and phthalans: synthetic methodologies and their applications in the total synthesis

R Karmakar, P Pahari, D Mal - Chemical Reviews, 2014 - ACS Publications
Small molecule natural products have been the mainstay of research in organic chemistry
since its early development. 1a The established classes of natural products, like alkaloids …

Cyclizations of alkynes: revisiting Baldwin's rules for ring closure

K Gilmore, IV Alabugin - Chemical Reviews, 2011 - ACS Publications
According to the CRC dictionary of natural products, 1 90% of chemically individual
molecules discovered in nature contain either a carbocyclic or a heterocyclic subunit. 2 Not …

Alternative synthetic methods through new developments in catalysis by gold

A Arcadi - Chemical Reviews, 2008 - ACS Publications
Synthetic chemists are constantly challenged to consider more environmentally benign
methods for generation of the desired target molecules. 1 Recently, there has been an …

Cu (II)-mediated ortho C–H alkynylation of (hetero) arenes with terminal alkynes

M Shang, HL Wang, SZ Sun, HX Dai… - Journal of the American …, 2014 - ACS Publications
Cu (II)-promoted ortho alkynylation of arenes and heteroarenes with terminal alkynes has
been developed to prepare aryl alkynes. A variety of arenes and terminal alkynes bearing …

Harnessing NHC/Base-Catalyzed Regiodivergent Oxidative Cyclization for Versatile Aminolactone Synthesis

IS Choi, PS Kim, W Ha, YH Kim, HJ Yoo, J Lee… - ACS …, 2023 - ACS Publications
A regiodivergent oxidative cyclization of ynamide-tethered benzaldehydes has been
achieved using an organocatalytic approach based on NHC/base. The method enables the …

Converting homogeneous to heterogeneous in electrophilic catalysis using monodisperse metal nanoparticles

CA Witham, W Huang, CK Tsung, JN Kuhn… - Nature Chemistry, 2010 - nature.com
A continuing goal in catalysis is to unite the advantages of homogeneous and
heterogeneous catalytic processes. To this end, nanoparticles represent a new frontier in …

NHC-catalyzed oxidative cyclization reactions of 2-alkynylbenzaldehydes under aerobic conditions: synthesis of O-heterocycles

JH Park, SV Bhilare, SW Youn - Organic Letters, 2011 - ACS Publications
An NHC-catalyzed, regio-and stereoselective oxidative cyclization of o-
alkynylbenzaldehydes bearing an unactivated alkyne moiety as an internal electrophile has …

Trifluoromethylthiolation/selenolation and lactonization of 2-alkynylbenzoate: The application of benzyl trifluoromethyl sulfoxide/selenium sulfoxides as SCF3/SeCF3 …

H Shi, X Wang, X Li, B Zhang, X Li, J Zhang… - Organic …, 2022 - ACS Publications
The combined use of BnS (O) CF3/BnSe (O) CF3 with Tf2O as SCF3/SeCF3 reagents was
implemented to realize an efficient synthesis of biologically interesting 4-(trifluoromethylthio …

Isocoumarins: General aspects and recent advances in their synthesis

P Saikia, S Gogoi - Advanced Synthesis & Catalysis, 2018 - Wiley Online Library
Being an important constituent of naturally occurring lactones with diverse biological
activities and as a pivotal intermediate in heterocycle synthesis, the isocoumarin motif has …

Synthesis of isocoumarins through three‐component couplings of arynes, terminal alkynes, and carbon dioxide catalyzed by an NHC–copper complex

WJ Yoo, TVQ Nguyen, S Kobayashi - Angewandte Chemie, 2014 - Wiley Online Library
A copper‐catalyzed multicomponent coupling reaction between in situ generated ortho‐
arynes, terminal alkynes, and carbon dioxide was developed to access isocoumarins in …