Allylation and benzylation of p-quinones was achieved through an unusual redox chain reaction. Mechanistic studies suggest that the existence of trace hydroquinone initiates a redox chain reaction that consists of a Lewis acid catalyzed Friedel-Crafts alkylation and a subsequent redox equilibrium that regenerates hydroquinone. The electrophiles could be various allylic and benzylic esters. The ...

A quick, efficient, one-pot method for the synthesis of substituted N-aryl lactams through the reaction of various kinds of corresponding substituted arenes with a variety of ω-azido alkanoic acid chlorides using a Lewis acid (i.e. EtAlCl(2)) at room temperature, through the in situ involvement of a Friedel-Crafts reaction followed by intramolecular Schimdt rearrangement was developed, and affo...

We describe the synthesis of two positional isomers and a desfluoro impurity of Voriconazole starting with Friedel-Crafts acylation of mono- and difluorobenzene. These isomers are the crucial components in determining the quality of Voriconazole during its manufacturing from the key raw material, 1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethan-1-one. All the prepared impurities were chara...

A series of custom-designed, high yield, isoskeletal tetranuclear Zn/4f coordination clusters showing high efficiency as catalysts with low catalytic loadings in Friedel-Crafts alkylation are described for the first time. The possibility of altering the 4f centers in these catalysts without altering the core topology allows us to further confirm their stability via EPR and NMR, as well to gain ...

Among other strategies that the Real Casa dos Expostos, managed by Misericórdia of Lisbon, has adopted in an attempt to ensure autonomy young people it assisted, promoted training various crafts through contracts with masters differents trades, which determined obligations they had fulfil towards institution and apprentices. The fundamental objective was prepare them work as journeymen, stated ...

In this paper, I describe research topics in my PhD-project Multimodal perceptually rich interfaces in transport. The project aims at exploring the use of multimodal interfaces, focusing on non-visual sense impressions in complex sociotechnical systems as the operation of high speed crafts. INTRODUCTION My PhD-project Multimodal perceptually rich interfaces in transport is part of an interdisci...

Laker is a typical Palembang handicraft in the form of all products or household utensils made wood, rattan, bamboo whatever painted with black ink and then coated varnish as an ingredient to beautify it well preservative. In this modern era use Crafts palembang increasingly fading it's not longer culture City palembang, especially younger generation. The lack promotion carried out on handicraf...

Nanosized MOR and BEA zeolites were directly synthesized using simple diquaternary ammonium compounds. The nanosized show improved catalytic performance in Friedel–Crafts n -alkane hydroconversion reactions.