Results 161 to 170 of about 124,907 (379)
Generalized critical points analysis of acetylene vibrational dynamics [PDF]
arXiv, 2004 Classical tools of nonlinear dynamics are used to study the highly excited vibrations of small molecules. For effective Hamiltonians with one polyad number (approximate constant of motion), previously developed methods locate new anharmonic modes using the critical points in the reduced classical phase space.
arxiv
Advanced Synthesis &Catalysis, EarlyView.Abstract A photocatalytic strategy for the radical alkenylation of aliphatic C(sp3)–H bonds with 2,3‐allenoate esters is described. The protocol takes place upon irradiation of the reaction mixture in the presence of the decatungstate anion, which triggers C−H cleavage in the chosen aliphatic substrates.
Alexandra Jorea +2 more
wiley +1 more source
Recent Developments in Radical Mediated Synthesis of Organostannanes.
Advanced Synthesis &Catalysis, EarlyView.Abstract The present review aims to provide an overview of the recent developments in the preparation of aryl‐ or alkenyl stannanes via carbon‐ and tin‐centered radicals enabling chemists to synthesize organostannyl derivatives with high efficiency and under mild conditions.
Qianhang Ren +4 more
wiley +1 more source
Gas-Phase Synthesis of Triphenylene (C18 H12 ). [PDF]
, 2019 For the last decades, the hydrogen-abstraction-acetylene-addition (HACA) mechanism has been widely invoked to rationalize the high-temperature synthesis of PAHs as detected in carbonaceous meteorites (CM) and proposed to exist in the interstellar medium (
Ablikim, Utuq +11 more
core
Orientation-Dependent Enhanced Ionization in Acetylene Revealed by Ultrafast Cross-Polarized Pulse Pairs [PDF]
arXivWe investigate the orientation dependence of Enhanced Ionization (EI) during strong-field-driven nuclear motion in acetylene (C$_2$H$_2$). Here, we both initiate and probe molecular dynamics in acetylene with intense 6-fs cross-polarized pulse pairs, separated by a variable delay.
arxiv
Synthesis of Polysubstituted Naphthalenes via Metal‐Free Borylative Cyclization of o‐Alkynylstyrenes
Advanced Synthesis &Catalysis, EarlyView.Abstract A selective, metal‐free method for the synthesis of boron‐functionalized polysubstituted naphthalenes via BCl3‐mediated cyclization of α‐substituted o‐alkynylstyrenes is described. The reaction exhibits broad substrate scope, tolerating various groups such as ethers, sulfides and halogens, and delivers high yields under mild conditions, even ...
Marcos Humanes +2 more
wiley +1 more source
Silver Compounds of Acetylene. III. The Equilibrium Constant of the Formation of Silver Carbide from Acetylene. [PDF]
, 1949 Ragnar Vestin +2 more
openalex +1 more source
Advanced Synthesis &Catalysis, EarlyView.Abstract α‐Chiral amines are versatile building blocks for the asymmetric synthesis of optically pure high‐added‐value chemicals, including pharmaceuticals, agrochemicals, and natural products. Herein, we report a one‐pot, two‐step sequential deracemization of racemic sec‐alcohols to optically enriched primary amines throught a photo‐biocatalytic ...
Natalia Antos +5 more
wiley +1 more source