Tandem Processes in<i>C</i>-Aryl Ketenes and Ketenimines Triggered by [1,5]-Hydride-Like Migration of an Acetalic Hydrogen Atom
作者:Angel Vidal、Marta Marin-Luna、Mateo Alajarin
DOI:10.1002/ejoc.201301501
日期:2014.2
3-dioxolan-2-yl)phenyl ketenes that, under thermal conditions, smoothly underwent a [1,5]-H shift/6π-electrocyclic ring-closure sequence to give 1H-2-benzopyrans. The application of such processes to ketenes, produced by replacing the phenyl scaffolding with a thiophene ring, afforded thienopyrans. The aza-Wittig reaction of these 2-(1,3-dioxolan-2-yl)phenyl and thienyl ketenes with N-aryliminophosphoranes
A Combined Experimental–Theoretical Study on Diels‐Alder Reaction with Bio‐Based Furfural: Towards Renewable Aromatics
作者:I Scodeller、Karine De Oliveira Vigier、Eric Muller、Changru Ma、Frédéric Guégan、Raphael Wischert、François Jérôme
DOI:10.1002/cssc.202002111
日期:2021.1.7
The synthesis of relevant renewable aromatics from bio‐based furfural derivatives and cheap alkenes is carried out by using a Diels‐Alder/aromatization sequence. The prediction and the control of the ortho/meta selectivity in the Diels‐Alder step is an important issue to pave the way to a wide range of renewable aromatics, but it remains a challenging task. A combined experimental‐theoretical approach
Design of porphyrin-based ligands for the assembly of [d-block metal : calcium] bimetallic centers
作者:Matthieu Koepf、Jesse J. Bergkamp、Anne-Lucie Teillout、Manuel J. Llansola-Portoles、Gerdenis Kodis、Ana L. Moore、Devens Gust、Thomas A. Moore
DOI:10.1039/c6dt04647a
日期:——
alkaline or alkaline-earth cations and transition metals is pivotal for the activity of several biomolecules and human-made catalysts that carry out fundamental redox transformations (water oxidation, nitrogen reduction, water–gas shift reaction, etc.). In many cases the precise nature of the interactions between the alkaline-earth cations and the redox-active transition metals remains elusive due to the
A possible electron-ionization induced elimination of dioxetane from the deglycolization product of lithium aluminum hydride reduction of the ethylene acetal of methyl o-formylbenzoate
作者:Howard D. Perlmutter、Roger A. Lalancette、Anthony Robertiello、David V. Bowen
DOI:10.1016/s0040-4039(00)71513-9
日期:1980.1
Reduction of the ethylene acetal of methyl o-formylbenzoate with lithium aluminum hydride afforded 1,2 bis(2-oxaindan-1-yloxy)ethane(V a), whose interesting mass spectroscopic behavior is discussed.