Fluoride-assisted activation of calcium carbide: A simple method for the ethynylation of aldehydes and ketones

A Hosseini, D Seidel, A Miska, PR Schreiner - Organic letters, 2015 - ACS Publications
The fluoride-assisted ethynylation of ketones and aldehydes is described using
commercially available calcium carbide with typically 5 mol% of TBAF· 3H2O as the catalyst …

Quantum‐chemical models of KOH(KOBut)/DMSO superbasic systems and mechanisms of base‐promoted acetylene reactions

NM Vitkovskaya, VB Orel, VB Kobychev… - … Journal of Quantum …, 2020 - Wiley Online Library
The mechanisms of fundamental base‐promoted acetylene reactions, namely, nucleophilic
addition to the triple C≡ C bond (vinylation) and nucleophilic addition of acetylenic …

Understanding the solubilization of Ca acetylide with a new computational model for ionic pairs

MV Polynski, MD Sapova, VP Ananikov - Chemical Science, 2020 - pubs.rsc.org
The unique reactivity of the acetylenic unit in DMSO gives rise to ubiquitous synthetic
methods. We theoretically consider CaC2 solubility and protolysis in DMSO and formulate a …

Exploring acetylene chemistry in superbasic media: A theoretical study of the effect of water on vinylation and ethynylation reactions with acetylene in KOH/DMSO and …

NM Vitkovskaya, VB Orel, VB Kobychev… - Journal of Physical …, 2017 - Wiley Online Library
A rapidly developing approach adding new dimensions to acetylene chemistry relying on
employment of high basicity media such as alkali metal hydroxide suspensions in dimethyl …

Aldol Condensation Versus Superbase-Catalyzed Addition of Ketones to Acetylenes: A Quantum-Chemical and Experimental Study

VB Orel, NM Vitkovskaya, AS Bobkov… - The Journal of …, 2021 - ACS Publications
The mechanism of aldol condensation of ketones in KOH/DMSO superbasic media has
been investigated using the B2PLYP (D2)/6-311+ G**//B3LYP/6-31+ G* quantum-chemical …

Reactions of Aldehydes and Ketones and their Derivatives

BA Murray - Organic Reaction Mechanisms 2011: An annual …, 2014 - Wiley Online Library
Carbohydrate‐based benzylidene acetals undergo reductive ring opening. 1‐β‐O‐Acyl
glucoside conjugates of phenylacetic acids have been synthesized, and their acyl migration …

The mechanism of one-pot assembly of tetracyclic derivatives of frontalin from cycloaliphatic ketones and acetylene in KOH/DMSO medium: A quantum-chemical study

VB Orel, AA Manzhueva - Tetrahedron, 2021 - Elsevier
The mechanism of one-pot assembly of tetracyclic derivatives of frontalin from cycloaliphatic
ketones and acetylene, in superbasic KOH/DMSO medium has been investigated using the …

Ethinylation reactions of some aldehydes in the presence of phenylacetylene using high-base catalytic systems

A Saida, I Abduvaxab, Z Odiljon… - CHEMISTRY AND …, 2021 - cce.researchcommons.org
The aim of the research work is the development of synthesis methods of aromatic acetylene
alcohols and their various derivatives using different catalytic systems and also, determining …

Реакция ацетиленовых карбанионов со связью C= N: динамика развития, синтетическая многовекторность, экологическая нейтральность

ЕЮ Шмидт, БА Трофимов - Успехи химии, 2024 - mathnet.ru
В обзоре рассмотрены динамика развития и синтетическое применение в
органическом синтезе недавно открытой реакции ацетиленовых карбанионов …

Formation mechanism and conformational structure of 2, 3, 4-trimethyl-1, 5-di (thiophen-2-yl) pentane-1, 5-dione: quantum chemical study

NM Vitkovskaya, EY Larionova, VB Kobychev… - Russian Chemical …, 2016 - Springer
The mechanism of formation of 1, 5-diketone, a key intermediate in the stereoselective
assembly of 2, 3, 4-trimethyl-7-methylidene-1, 5-di (thiophen-2-yl)-6, 8-dioxabicyclo [3.2. 1] …