Results 111 to 120 of about 2,106,514 (153)

A family of methoxide-bridged Cu(II) compounds with N-heterocyclic ligands: dimers and chains

Journal of coordination chemistry, 2023
Three new methoxide-bridged Cu(II) dimers are reported: tetrakis(2-methylpyrazine)di(μ-methoxy)diperchloratodicopper(II) (1), tetrakis(2-amino-5-iodopyridine)dibromide-di-μ-methoxydicopper(II) tetramethanol (2) and catena[(2-amino-5-methylpyridine)μ ...
Alma P. Araujo-Martinez, Kesli Faber, N. Huynh, D. Dickie, C. Landee, M. Turnbull, B. Twamley, J. Wikaira   +7 more
semanticscholar   +1 more source

Acid-Responsive Dissociation of Ferrocene Compounds: Diels-Alder Diene Equivalents for Selective Preparation of [60]Fullerene-Fused Bicyclo[2.2.1]hept-5-enes.

Journal of Organic Chemistry, 2022
Herein, an unprecedented transformation of [60]fullerene with ferrocene compounds giving access to various [60]fullerene-fused bicyclo[2.2.1]hept-5-enes is presented. In the presence of an acid, ferrocene compounds undergo an unusual dissociation process
Tong-Xin Liu, Han Wu, N. Ma, Chuanjie Zhang, Peng-Ling Zhang, Jin-Liang Ma, Guisheng Zhang   +6 more
semanticscholar   +1 more source

From Tetranitromethane to Gem-Dinitro-Bridged Nitrogen-Rich Heterocyclic Compound: Achieving High Heat of Detonation.

Journal of Organic Chemistry, 2023
Improving the detonation performance of tetranitromethane (TNM) by introducing energetic moieties is an intriguing area in the field of energetic materials.
Zhaoyang Yin, Wei Huang, Ya-Qun Dong, Miao Li, Zhongyu Sun, Yu-Ji Liu, Yong-Xing Tang   +6 more
semanticscholar   +1 more source

Bridged Polycyclic Compounds. IV. The Stereochemistry of the Free Radical Addition of p-Thiocresol to a Bicyclo [2,2,1]Heptene and a Bicyclo [2,2,2]octene1

Journal of the American Chemical Society, 1957
Stanley J. Cristol
exaly   +2 more sources

Imidazole-catalyzed construction of bridged bicyclo [3.3.1] ketals via formal [3 + 3]-cycloaddition of naphthols and 2-hydroxyl chromene derivatives.

Organic and biomolecular chemistry
Bridged bicyclo[3.3.1]nonanes having the O,O-ketal subunit are widely found in medicinal compounds. While several acid-catalyzed approaches have been reported for the construction of ketals, this study discloses an imidazole-catalyzed modular ...
A. Budakoti, Priyankar Jha, Meenakshi Verma, P. Vasudev, Atul Gupta   +4 more
semanticscholar   +1 more source

Zero valent iron and nickel coordination chemistry: metal atoms as direct approach to bis(benzene)chromium bridged N-heterocyclic silylene complexes.

Dalton Transactions
Synthesis and characterization of iron and nickel metal complexes employing the monodentate N-heterocyclic silylene RSiPh (R = PhC(NtBu)2) is reported.
J. Emmert, Jörg Rust, Christian W. Lehmann, Jörg J. Schneider   +3 more
semanticscholar   +1 more source

In-situ approach for the synthesis of bromide-bridged mercury(II) N-heterocyclic carbene complexes

, 2020
The study was designed to synthesize bromide-bridged mercury(II) symmetric and non-symmetric N-heterocyclic carbene complexes. The preparation of benzimidazolium salts (4–6) was accomplished by symmetrical and non-symmetrical substitution on ...
M. Atif, H. Bhatti, M. Iqbal, Y. Jamil
semanticscholar   +1 more source

Exploring the role of H-migration in the aromaticity, spectroscopic, photovoltaic and optical properties of planar heterocyclic compounds: a DFT study.

Physical Chemistry, Chemical Physics - PCCP
In this study, five tautomer's IB1-IB5 are designed and studied, containing donor (-NH2)-π(THDP)-acceptor (-NO2) frameworks, formed through the migration of hydrogen atoms from/to the pyrazine rings.
Muhammad Ibrahim, Farah Tayyaba Khan, Hong-Liang Xu, M. Ali   +3 more
semanticscholar   +1 more source

Construction of enantiopure imine bridged benzo[c]azepinones by a silver(i) and chiral N-heterocyclic carbene multicatalytic reaction sequence of N′-(2-alkynylbenzylidene)hydrazides and cyclopropanecarbaldehydes

, 2020
A novel and efficient method for the synthesis of enantiopure bridged benzo[c]azepinone compounds has been developed by metal/N-heterocyclic carbene multicatalysis. Catalyzed by CF3CO2Ag and a triazolium-derived chiral N-heterocyclic carbene in a cascade,
Jin-Tao Ma, Ying Cheng
semanticscholar   +1 more source

N-Iodosuccinimide-Mediated Dimerization of 2-Alkynylnaphthols: A Highly Diastereoselective Construction of Bridged Polycyclic Compounds via Vinylidene ortho-Quinone Methide Intermediate.

Organic Letters, 2020
An unprecedented highly diastereoselective dimerization of 2-alkynylnaphthols is presented to furnish bridged polycyclic compounds containing a bicyclo[3.2.1]octane moiety with good to excellent yields.
Yun-Xuan Tan, Zhengxing Zhao, Zhi-Li Chen, Sheng-Li Huang, Shiqi Jia, Lei Peng, Da-Shuang Xu, Wen-Ling Qin, Hai-Long Yan   +8 more
semanticscholar   +1 more source