14548-16-4Relevant articles and documents
ZUR UMSETZUNG VON ARYLMETHYLKETONEN MIT SCHWEFEL, SEKUNDAEREN AMINEN UND SCHWEFELDIOXID
Matschiner, Hermann,Maschmeier, Claus-Peter,Maier, Nadja,Hansen, Jens
, p. 223 - 230 (2007/10/02)
The acetophenones 2 react with different sulfurdioxide-secondary amine adducts 1 and sulfur to yield the red-coloured zwitterionic 2-imino-dithioacetates 3.Enamines can be proved to be intermediates in this reaction.Thus enamines 5 and other derivatives such as acetophenone anil, acetophenone diethyl acetal and diphenacyl sulfide also give 3.In the absence of 1, 3a react with hydrogen sulfide to form the thioamide of phenylacetic acid 8. Key words: 2-Iminio-dithioacetates; iminium salts; zwitterionic; SO2-secondary amin adducts; Willgerodt-Kindler-reaction; enamines; heptathiocanes.
SYNTHESIS OF α-DIALKYLAMINOSTYRENES AND THEIR REACTION WITH AZODICARBOXYLIC ESTER AND COMPOUNDS CONTAINING AN ACTIVATED MULTIPLE BOND
Koikov, L. N.,Terent'ev, P. B.,Torochesnikov, V. N.,Kulikov, N. S.
, p. 110 - 118 (2007/10/02)
Lower α-dialkylaminostyrenes react with compounds containing an activated double bond by a mechanism of "vinyl" substitution with the formation of both disubstituted and monosubstituted compounds.The ester groups of the mono- and bisN,N'-di(methoxycarbon