New frontiers in the transition-metal-free synthesis of heterocycles from alkynoates: an overview and current status

I Khan, S Zaib, A Ibrar - Organic Chemistry Frontiers, 2020 - pubs.rsc.org
Heterocycles are among the well-established classes of compounds, constituting a wide
range of organic molecules. These structural motifs not only have a dominant presence in a …

Chemistry and biology of podophyllotoxins: an update

M Hao, H Xu - Chemistry–A European Journal, 2024 - Wiley Online Library
Podophyllotoxin is an aryltetralin lignan lactone derived from different plants of
Podophyllum. It consists of five rings with four chiral centers, one trans‐lactone and one aryl …

Divergent asymmetric syntheses of podophyllotoxin and related family members via stereoselective reductive Ni-catalysis

J **ao, XW Cong, GZ Yang, YW Wang, Y Peng - Organic letters, 2018 - ACS Publications
A nickel-catalyzed reductive cascade approach to the efficient construction of
diastereodivergent cores embedded in podophyllum lignans is developed for the first time …

IntraMolecular Diels–Alder Reactions of Vinylarenes and Alkynyl Arenes (the IMDAV Reaction)

G Krishna, DG Grudinin, EV Nikitina, FI Zubkov - Synthesis, 2022 - thieme-connect.com
This comprehensive review summarizes the published literature data concerning the
intramolecular Diels–Alder reactions of vinylarenes (the IMDAV reaction) and alkynyl arenes …

Ingenane and jatrophane diterpenoids from Euphorbia kansui and their antiproliferative effects

XH Meng, K Wang, T Chai, ZY Guo, M Zhao, JL Yang - Phytochemistry, 2020 - Elsevier
In this study, fourteen ingenane-type and nine jatrophane-type diterpenoids were isolated
from Euphorbia kansui, including seven undescribed compounds. Kansuingenol AC have …

Recent advances in the total synthesis of 2, 7′-cyclolignans

HQ Zhang, CX Yan, J **ao, YW Wang… - Organic & Biomolecular …, 2022 - pubs.rsc.org
The synthetic progress of bioactive 2, 7′-cyclolignans is reviewed. After a short introduction
to biosynthesis and chemoenzymatic synthesis, the chemical synthesis of various …

Facile synthesis of diverse hetero polyaromatic hydrocarbons (PAHs) via the styryl Diels–Alder reaction of conjugated diynes

J Wei, M Liu, X Ye, S Zhang, E Sun, C Shan… - Organic Chemistry …, 2022 - pubs.rsc.org
The styryl dehydro-Diels–Alder reaction with a conjugated diyne is reported. While typical
alkyne–styrene condensation requires elevated temperatures (> 160° C), the application of …

Intramolecular Diels–Alder Reactions of α-Bromostyrene-Functionalized Unsaturated Carboxamides

Z Wang, S Yamazaki, Y Mikata, M Oba… - The Journal of …, 2022 - ACS Publications
Intramolecular cycloaddition reactions of α-bromostyrene-functionalized amides of
monomethyl fumarate were investigated. The reaction of the amides with Et3N in toluene at …

Knoevenagel-IMHDA and-IMSDA sequences for the synthesis of chiral condensed O, N-, S, N-and N-heterocycles

M Kajtár, SB Király, A Bényei, A Kiss-Szikszai… - RSC …, 2025 - pubs.rsc.org
Domino Knoevenagel-cyclization reactions of styrene substrates, containing an N-(ortho-
formyl) aryl subunit, were carried out with N-substituted 2-cyanoacetamides to prepare …

Competing Domino Knoevenagel-Cyclization Sequences with N-Arylcinnamylamines

M Kajtár, SB Király, A Bényei… - The Journal of …, 2024 - ACS Publications
Domino Knoevenagel-cyclization reactions of N-arylcinnamylamines were carried out with
active methylene reagents, which took place with five competing cyclization mechanisms …