Synthesis of axially chiral compounds through catalytic asymmetric reactions of alkynes

ZX Zhang, TY Zhai, LW Ye - Chem Catalysis, 2021 - cell.com
Axially chiral compounds are a result of the nonplanar arrangement of four groups in pairs
about a chirality axis. Axially chiral molecules not only exist in a range of bioactive …

Diastereo- and atroposelective synthesis of N-arylpyrroles enabled by light-induced phosphoric acid catalysis

L Dai, X Zhou, J Guo, X Dai, Q Huang, Y Lu - Nature Communications, 2023 - nature.com
The C− N axially chiral N-arylpyrrole motifs are privileged scaffolds in numerous biologically
active molecules and natural products, as well as in chiral ligands/catalysts. Asymmetric …

Decomposition of Alkynyl Hydrazones: Synthesis of Allenoates, Dihaloallenoates, and Angularly Fused Tricyclic Azepines

P Jamwal, A Sharma, R Gurubrahamam - Organic Letters, 2023 - ACS Publications
An unprecedented decomposition of unprotected alkynyl hydrazones is attempted that has
provided allenoates, tetrasubstituted α, γ-dihaloallenoates, and functionalized tricyclic …

Copper-catalyzed 1, 4-protosilylation and 1, 4-protoborylation of enynic orthoesters for synthesis of functionalized 2, 3-allenoates

Q Li, ZL Wang, YH Xu - Chinese Chemical Letters, 2023 - Elsevier
Abstract Herein, copper-catalyzed 1, 4-protosilylation and 1, 4-protoborylation of enynic
orthoesters have been developed. The enynic orthoesters as precursors of unstable enynic …

Sequential organo and metal catalyzed reaction between 3-pyrrolyloxindoles and linear nitroenynes: access to cyclic aza-spirooxindoles

S Biswas, SK Purkayastha, AK Guha… - Chemical …, 2023 - pubs.rsc.org
An asymmetric Michael addition/hydroarylation reaction sequence, catalyzed by a
sequential catalytic system consisting of a squaramide and a combination of silver and gold …

Diastereo-and Enantioselective Synthesis of Eight-Membered N-Heterocycles from Benzofuran-Derived Azadienes and Ynones

SS Qi, JY Dong, XP Sun, JJ Zhai, YB Sun… - The Journal of …, 2024 - ACS Publications
Enantioselective synthesis of eight-membered N-heterocycles represents a long-standing
challenge in organic synthesis. Here, by combining the squaramide and DBU catalysis, a …

The literature of heterocyclic chemistry, Part XXI, 2021

LI Belen'kii, GA Gazieva, YB Evdokimenkova… - Advances in …, 2024 - Elsevier
A systematized survey of reviews and monographs published in 2021 on all aspects of
heterocyclic chemistry is given. Methods for the synthesis, reactivity, and practically useful …

Ir-catalyzed chemo-and enantioselective hydrogenation of enyne-conjugated ketones

X Zheng, F Huang, J Yu, Q Lang, YN Duan… - Organic Chemistry …, 2024 - pubs.rsc.org
The asymmetric hydrogenation of β-alkynyl α, β-unsaturated ketones has been achieved by
using Ir/f-phamidol as a catalyst under mild conditions, providing the corresponding chiral …

Organocatalytic Decarboxylation and Dual C(sp3)−H Bond Functionalization Toward Facile Access to Divergent 2,6‐Diarylpyridines

R Gujjarappa, N Vodnala, D Musib… - Asian Journal of …, 2022 - Wiley Online Library
An effective organocatalytic protocol toward the assembly of symmetrical and unsymmetrical
2, 6‐diarylpyridines is demonstrated. The reaction proceeds through organocatalytic …

Preparation of Benzo[a]fluorenes via Pd-Catalyzed Annulation of 5-(2-Bromophenyl)pent-3-en-1-ynes

CK Hsu, YH Liu, ST Liu - The Journal of Organic Chemistry, 2024 - ACS Publications
A palladium-promoted cascade cyclization of 5-(2-bromophenyl) pent-3-en-1-ynes is
developed for the synthesis of benzo [a] fluorene derivatives. The reaction proceeds with …