Results 171 to 180 of about 543,145 (385)

CO2-promoted photocatalytic aryl migration from nitrogen to carbon for switchable transformation of N-arylpropiolamides

Nature Communications
Photocatalytic N-to-C aryl migration allows for quick construction of highly useful amide derivatives from readily available compounds. By developing the reactions of sodium sulfinates with the N-aryl-propiolamides, we herein demonstrate that the CO2 ...
Ge Liu, Denghui Ma, Jianchen Zhang, Fanyuanhang Yang, Yuzhen Gao, Weiping Su   +5 more
doaj   +1 more source

Bis(diethyldithiocarbamato)(iodo)(4-methoxyphenyl)tellurium(IV), \u3cem\u3ep\u3c/em\u3e-MeOC\u3csub\u3e6\u3c/sub\u3eH\u3csub\u3e4\u3c/sub\u3eTe(Et\u3csub\u3e2\u3c/sub\u3eNCS\u3csub\u3e2\u3c/sub\u3e)\u3csub\u3e2\u3c/sub\u3eI, and its Isomorphous Partially Bromine-Replaced Analogue, \u3cem\u3ep\u3c/em\u3e-MeOC\u3csub\u3e6\u3c/sub\u3eH\u3csub\u3e4\u3c/sub\u3eTe(Et\u3csub\u3e2\u3c/sub\u3eNCS\u3csub\u3e2\u3c/sub\u3e)\u3csub\u3e2\u3c/sub\u3eBr\u3csub\u3e0.41\u3c/sub\u3eI\u3csub\u3e0.59\u3c/sub\u3e [PDF]

, 1996
The structure of the title TeIV complex, C13H19BrN2OS4Te.045(CH2Cl2), is pentagonal bipyramidal with four S atoms [Te-S 2.623 (1)-2.717 (1) Å] and the Br atom [Te-Br 2.890 (1) Å] in equatorial positions. The p-methoxyphenyl group is axial [Te-C 2.145 (3)
Husebye, Steinar, Kudis, Steffen, Lindeman, Sergey V.   +2 more
core   +2 more sources

The Behaviour of Lignin in Alkaline Pulping. II. Model Experiments with Arylalkyl-beta-aryl Ethers. [PDF]

, 1964
Erich Adler, Ingemar Falkehag, Joseph Marton, Hans Halvarson, Lennart Nilsson   +4 more
openalex   +1 more source

Impact of the Substitution Pattern in N–heterocyclic Olefin‐Substituted Phosphines on Palladium Catalysis

Advanced Synthesis &Catalysis, EarlyView.
The impact of olefin backbone substitution in N‐heterocyclic olefin‐substituted phosphines is investigated. While these ligands are highly electron‐donating, their catalytic activity in Pd‐catalyzed CN cross‐coupling reactions decreases as the size of the backbone substituent increases.
Nicolas Kaiser, Aya Alhaddad, Julian Löffler, Viktoria H. Gessner   +3 more
wiley   +1 more source

Photoredox-Catalyzed Decarboxylative Cross-Coupling Reaction to Synthesis Unsymmetrical Diarylmethanes

Molecules
The photoredox-catalyzed decarboxylative cross-coupling reaction of aryl acetic acids and aryl nitriles has been achieved under an argon atmosphere in high yields.
Guozhe Guo, Yuquan Zhang, Yanchun Li, Zhijun Li   +3 more
doaj   +1 more source

Fire-resistant phosphorus containing polyimides and copolyimides [PDF]

, 1985
Phosphorus-containing polyimides and copolyimides are synthesized in a two-step polycondensation reaction from 1- (diorganooxyphosphonl)methly 2,4- and 2,6-diaminobenzenes and tetracarboxylic anhydride. The diorgano position of the diorganooxyphosphonyl
Mikroyannidis, J. A.
core   +1 more source

Fungal Cellulases XI. The Nature of the Inductive Process for Aryl ?-Glucosidase in Stachybotrys Atra [PDF]

, 1965
MAJ Ermyn
openalex   +1 more source

Water‐Mediated 1,7‐Palladium Aryl‐to‐Aryl Migration in an Unusual Aryne Trimerization Enables the Synthesis of Multihelicenes with Profoundly Hindered Stereogenic Axes

Advanced Synthesis &Catalysis, EarlyView.
In the presence of a Pd0 catalyst, large π‐extended arynes trimerize in an unusual manner to forge extremely compact and strained chiral benzenoids. This new trimerization reaction involves a 1,7‐Pd isomerization, a rare and poorly understood process that is elucidated.
Albert Artigas, Manuel A. Ortuño, Jesús Castro‐Esteban, Michel Giorgi, Diego Peña, Dolores Pérez, Yoann Coquerel   +6 more
wiley   +1 more source

Sulfenamides as flame retardants [PDF]

, 2015
FIELD OF THE INVENTION The present invention is in the field of flame retardants and relates to use of sulfenamides as flame retardants, in particular in polymeric sub ...
Aubert, Melanie, Pawelec, Weronika, Tirri, Teija, Wilen, Carl-Eric   +3 more
core  

Chemoselective Synthesis of α‐Chloro and α,α‐Dichloro Acetamidines via the Carbenoids Addition to Inherently Low Electrophilic Carbodiimides

Advanced Synthesis &Catalysis, EarlyView.
Carbodiimides act as competent electrophilic synthons for the chemoselective addition of lithium mono‐ and di‐halocarbenoids. The transformation is provided through a single synthetic operation—hitherto elusive—halogenated acetamidines. Interestingly, the constitutively tamed electrophilicity of the starting materials is effectively counterbalanced by ...
Davide Castiglione, Margherita Miele, Alberto Nardi, Laura Castoldi, Vittorio Pace   +4 more
wiley   +1 more source