András Vass | Researchain

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Tetrahedron Letters | 1999

SOLVENT-FREE SYNTHESIS OF N-SULFONYLIMINES USING MICROWAVE IRRADIATION

András Vass; Jozsef Dudas; Rajender S. Varma

N-Sulfonylimines are prepared expeditiously in a one-pot solventless operation by microwave thermolysis of aldehydes and sulfonamides in the presence of benign reagents, calcium carbonate and montmorillonite K 10 clay.

Journal of The Chemical Society-perkin Transactions 1 | 1998

Microwave-induced selective deacetylation and stereospecific acyl migration of steroid acetates on alumina

András Vass; Pál Tapolcsányi; János Wölfling; Gyula Schneider

A simple high-yielding method for the deprotection of acetylated steroid stereoisomers is described, which occurs under mild conditions on an alumina surface in response to microwave irradiation.

Phosphorus Sulfur and Silicon and The Related Elements | 1987

Phosphorylated Acid Anilides as New Insecticides

András Vass; Miklós Nádasy; Károly Sági; Gábor Szalontai

Abstract Some new phosphorodithioates containing acid anilide-group have been synthesized and the relationship between insecticidal activity and the structure of the compounds has been studied.

Synthesis | 1986

Preparation and reactions of N-alkyl(aryl), N-isothiocyanatomethyl carboxamides: synthesis of 1,3,5-thiadiazepin-6-ones

András Vass; Gábor Szalontai

Archive | 1993

New N-substd. N-acyloxy:methyl-N'-sulphonyl-urea cpds

András Vass; Jozsef Dudas; Dezsoe Miklos; József Nagy; Istvan Toth; Gábor Szalontai; Karoly Balogh; Judit Tóth; Judit Szabo-Marczy

European Journal of Organic Chemistry | 1988

Steroids, XXXVII. Neighbouring Group Participation, VIII2) Neighbouring Group Participation in the 16‐Hydroxymethyl‐3‐methoxyestra‐1,3,5(10)‐trien‐17β‐ol Series

Gyula Schneider; Irén Vincze; András Vass; Pál Sohár

Archive | 1980

Process for the preparation of 2,6-dialkyl-N-alkoxymethyl-2-chloro-acetanilides

Andras Haas; Miklos Kovacs; Laszlo Kulcsar; Miklos Nadasy; Balint Nagy; András Vass; Ervin Vertesi; Bela Gyorfi; Laszlo J. Szabo; Kornelia Nee Pinter Domjan; Gyorgy Huszak; Zoltan Kolonics; Laszlo Lendvai; Jeno Pelyva; Endre Sumegi; Elemer Tomordi

Archive | 2005

A new process for the preparation of phenolic hydroxy-substituted compounds

András Vass; Jozsef Dudas; László Borbély; Ferenc Haász; Péter Jekkel

Archive | 1991

Herbicidally active urea derivatives and a process for the preparation thereof

Vass Andras; András Vass; Miklos Dezsoe; Dezsoe Miklos; Kovacs-Nee-Huber Maria; Maria Kovacs Nee Huber; Balogh Karoly; Karoly Balogh; Bartfai-Nee-Harsanyi Angela; Angela Bartfai Nee Harsanyi; Dudas Jozsef; Jozsef Dudas; Szalontai Gabor; Gábor Szalontai; Toth Istvan; Istvan Toth; Dombay Zsolt; Zsolt Dombay; Szabo-Nee-Marczy Judit; Judit Szabo Nee Marczy; Simon Zoltan; Zoltan Simon; Nagy Balint; Balint Nagy; Szoeke Bela; Bela Szoeke; Nagy Jozsef; József Nagy; Pavliscsak Csaba; Csaba Pavliscsak

Archive | 1991

Herbicidal urea derivatives and methods for making the same

András Vass; Jozsef Dudas; Judit Szabó; Dezsoe Miklos; Gábor Szalontai; Zoltan Simon; Balint Nagy; Maria Kovacs; Istvan Toth; Bela Szoeke; József Nagy; Karoly Balogh; Zsolt Dombay; Csaba Pavliscsak; Angela Bartfai; Erzsebet Mile; Karoly Fodor

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