Construction of C–N and C–O bonds based on N-allenamide functionalization

M Hourtoule, L Miesch - Organic & Biomolecular Chemistry, 2022 - pubs.rsc.org
The two-faced reactivity of N-allenamides allows regio-and stereo-controlled
functionalization at the α-, β-and γ-positions of the nitrogen atom. The contingency to obtain …

Copper‐Catalyzed Synthesis of Terminal vs. Fluorine‐Substituted N‐Allenamides via Addition of Diazo Compounds to Terminal Ynamides

Y Zheng, B Moegle, S Ghosh, A Perfetto… - … A European Journal, 2022 - Wiley Online Library
A copper‐mediated coupling reaction between ynamides and diazo‐compounds to produce
N‐allenamides is reported for the first time. This method enables facile and rapid access to …

N‐Cyanation of Primary and Secondary Amines with Cyanobenzio‐doxolone (CBX) Reagent

Z Chen, W Yuan - Chemistry–A European Journal, 2021 - Wiley Online Library
An efficient electrophilic N‐cyanation of amines with a stable and less‐toxic
cyanobenziodoxole reagent towards the synthesis of cyanamides is disclosed. This …

Synthesis of five-membered cyclic guanidines via cascade [3+ 2] cycloaddition of α-haloamides with organo-cyanamides

CC Wang, YL Qu, XH Liu, ZW Ma, B Yang… - The Journal of …, 2021 - ACS Publications
The convenient preparation of N2-unprotected five-membered cyclic guanidines was
achieved through a cascade [3+ 2] cycloaddition between organo-cyanamides and α …

[HTML][HTML] A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and …

OK Koleoso, M Turner, F Plasser… - Beilstein Journal of …, 2020 - beilstein-journals.org
An intermolecular radical addition, using photoredox catalysis, to allenamides and
allencarbamates is reported. This transformation synthesizes N-acyl-N'-aryl-N, N' …

Selective Hydrofunctionalization of N-Allenyl Derivatives with Heteronucleophiles Catalyzed by Brønsted Acids

A Quintavalla, D Carboni, A Brusa… - The Journal of Organic …, 2024 - ACS Publications
In this study, we present a novel and environmentally sustainable protocol for the γ-
hydrofunctionalization of N-allenyl compounds using various heteronucleophiles catalyzed …

Magnetic chitosan stabilized Cu (II)-tetrazole complex: An effective nanocatalyst for the synthesis of 3-imino-2-phenylisoindolin-1-one derivatives under ultrasound …

M Nasrollahzadeh, N Shafiei, Y Orooji - Scientific Reports, 2022 - nature.com
In the present research, a recyclable catalyst has been prepared via a simple approach
using chitosan as a linear polysaccharide. This paper reports the synthesis of novel copper …

Cyanide-free synthesis of air stable N-substituted Li and K cyanamide salts from tetrazoles. Applications toward the synthesis of primary and secondary cyanamides …

E Duchamp, S Hanessian - Organic Letters, 2020 - ACS Publications
A practical two-step synthesis of N, N′-disubstituted cyanamides consists in the low-
temperature metalation of N-substituted 5 H-tetrazoles that undergo spontaneous …

Lewis Acid‐Mediated Cyanation of Phenols Using N‐Cyano‐N‐phenyl‐p‐toluenesulfonamide

W Zhang, T Li, Q Wang, W Zhao - Advanced Synthesis & …, 2019 - Wiley Online Library
Lewis acid‐mediated cyanation of phenol derivatives with N‐cyano‐N‐phenyl‐p‐
toluenesulfonamide (NCTS) has been developed. The reaction proceeded efficiently with …

Research and Application of N-Ts Cyanamides in Organic Synthesis

W Chuanchuan, M Zhiwei, H Xuehui… - Chinese Journal of …, 2023 - sioc-journal.cn
N-Ts cyanamide, which has been widely used in the construction of nitrogen-containing
framework, is one of the efficient and practical multifunctional synthetic precursors in organic …