64531-48-2Relevant academic research and scientific papers
Preparation and IR-Spectroscopic Study of Charge Transfer Complexes of Naphthalene Derivatives with Some Tri- and Di-Nitrobenzenes
Hindawey, Ahmed M.,Issa, Yousry M.,Marghalani, Yousef A.,Issa, Raafat M.
, p. 1143 - 1150 (2007/10/02)
The charge transfer complexes of naphthalene and some of its derivatives with some trinitro- and dinitrobenzenes are prepared and investigated by ir-spectroscopy.The shifts in the bands due to functional groups as well as the γCH bands of both donor and acceptor are found to be indicative for the type of bonding in the charge transfer complex. - Keywords: Charge transfer complexes, synthesis and IR-spectra
Syntheses of 4-Dialkylamino-5,6-dihydrothiopyrane-2-thiones
Schweiger, Klaus
, p. 1175 - 1184 (2007/10/02)
4-Dialkylamino-5,6-dihydrothiopyrane-2-thiones 3, 9, 10 are synthesized in good yields by reaction of α,β-unsaturated methylketones with dialkyl-ammonium-dialkyldithiocarbamates 5 or carbon disulfide and secondary amines.The reaction takes place via the corresponding oxobutyl-N,N-dialkyldithiocarbamates 13 and dialkylaminobutenyl-N,N-dialkyldithiocarbamattes 14.Cyclohexenylmethylketone 11 reacts with 5 to give 4-dialkylaminohexahydrothiochromane-2-thiones 12.In dimethylformamide or diethylformamide as solvents aminolysis take place and 4-dimethylamino or 4-diethylaminothiopyrane-2-thiones are also formed.Instead of 3-alken-2-ones 6 also 4-hydroxy-2-alkanones 7 and methylketones 8 (such as acetone), which readily undergo the aldol condensation can be used for the preparation of thiopyrane-2-thiones. - Keywords: Dialkylammonium-dialkyldithiocarbamates, reaction with α,β-unsaturated ketones; Dialkylformamides, aminolysis of; Ketones, α,β-unsaturated, reaction with dialkylammonium-dialkyldithiocarbamates; Thiochroman-2-thiones, -4-dialkylamino, hexahydro-; Thiopyran-2-thiones, 4-dialkylamino-5,6-dihydro-
