27759-71-3Relevant academic research and scientific papers
The synthesis and structure of a cadmium complex of dimorpholinodithioacetylacetonate and its use as single source precursor for CdS thin films or nanorods
Ramasamy, Karthik,Malik, Mohammad A.,O'Brien, Paul,Raftery, James
, p. 2196 - 2200 (2009)
A facile method for the preparation of dimorpholides of dithioacetylacetonate is described together with a X-ray single crystal structure of the ligand and of [Cd(msacmsac)2(NO3) 2] (msacmsac = dimorpholinodithioacetylacet
Interesting behavior of acetone under the Willgerodt-Kindler reaction conditions
Darabi, Hossein Reza,Aghapoor, Kioumars,Nakhshab, Leila
, p. 601 - 605 (2007/10/03)
A one-pot synthesis of thiomorpholides 1-3 is introduced. The Willgerodt-Kindler reaction of acetone with sulfur and morpholine gives selectively one of the products 1-4 depending upon the proper choice of the reaction condition. The formed products are strongly dependent on the experimental conditions. The pathways of the reaction toward the formation of each product are also proposed.
Dithio and Thiono Esters, 59. - Reactions of Aliphatic Dithio Acid Dianions with Carbon Disulfide
Hartke, Klaus,Rettberg, Norbert,Dutta, Dinah,Gerber, Hans-Dieter
, p. 1081 - 1090 (2007/10/02)
Dianions 2 of dithioacids 1 and carbon disulfide yield in a kinetically controlled reaction at -78 deg C S-adducts (e.g. 3, 13) or in a thermodynamically controlled reaction at room temperatur C-adducts .Acidification of 10 and subsequent reactions give rise to the tetrathiomalonic acids 18 and its derivatives 19 with 2,6,9,10-tetrathiaadamantane structure.Deprotonation of 10a leads to the tetrathiomalonic acid tetraanion (20) which may be alkylated to yield the tetrakis(alkylthio)allenes 21.By condensation of the dithioacid dianions 2, the tetrathiomalonic acid trianion 10 and the tetrathiomalonic a cid tetraanion (20) with 2,3-dichloro-1,4-naphthoquinone (32) a number of naphtho-1,3-dithiole-4,9-diones (e.g. 33, 35, 37) are obtained. - Key Words: Dithio acid dianions / Tetrathiomalonic acid / Anions / Tetrathiomalonic acid tetraanion / Dithioacrylic esters / Thio acids / Allenes, alkylthio- / Naphtho-1,3-dithiole-4,9-diones / Malonic acid, tetrathio- / Acrylic acid, dithio
Kinetic and Mechanistic Study of the Reaction between Dithiomalonamides and Diiodine. Crystal Structure of the Compounds 3,5-Bis(ethylamino)-1,2-dithiolylium Triiodide and 3,5-Bis(morpholino)-1,2-dithiolylium Iodide Monohydrate
Ambrosetti, Roberto,Bellucci, Giuseppe,Bianchini, Roberto,Bigoli, Francesco,Deplano, Paola,et al.
, p. 339 - 347 (2007/10/02)
The reaction of N,N'-diethyldithiomalonamide with I2 has been investigated spectrophotometrically.A kinetic study carried out with the stopped-flow technique has shown the transient formation of a 1:1 N,N'-diethyldithiomalonamide*I2 charge-transfer complex having a formation constant K1 = 2.3(3) x 103 dm3 mol-1 at 25 deg C.This is followed by an oxidation-reduction reaction leading to 3,5-bis(ethylamino)-1,2-dithiolylium iodide and HIn (n = 1 or 3), through a first- and a second-order process with respective rate constants at 25 deg C k1 = 0.84(7) s-1and k2 = 2.0(3) x 103 dm3 mol-1 s-1, consisting of an unassisted or I2 assisted heterolytic fission of the I-I bond as the slow step.Further associative equilibria of 3,5-bis(ethylamino)-1,2-dithiolylium iodide and HI with free I2 leading to the corresponding triiodides have also been observed, having formation constants, respectively, K2 = 6.2(7) x 105 dm3 mol-1 and K3 = 8.9(5) x 106 dm3 mol-1.All the kinetic and thermodynamic parameters were obtained by an expressly devised computational method based on nonlinear least-squares procedures.An X-ray crystal structure analysis of the title compounds, obtained as products of the reaction between I2 and RNR'C(S)CH2C(S)R'NR, showed that the crystals obtained in the RNR' = EtNH and I2 excess case are monoclinic, space group C2/m, with a = 13.643(6), b = 9.749(5), c = 11.879(6) Angstroem, β = 99.76(2) deg and Z = 4.The structure consists of chains running parallel to , where the 3,5-bis(ethylamino)-1,2-dithiolylium cations and triiodide anions are connected through two strong interactions involving the terminal iodide atom of the unsymmetrical I3- (I2...I- anion) and both the sulphur atoms of the disulphide group.In the RNR' = OC4H8N and 1:1 reagents ratio case the crystals are monoclinic, space group P21/c, with a = 9.256(4), b = 20.257(6), c = 8.483(4) Angstroem, β = 90.91(2) deg and Z = 4.The structure consists of layers, approximately parallel to (201), determined by contacts involving cations, iodide anions and water molecules.
Thiono and Dithio Esters, 44. - Reaction of Tetrathiomalonic Esters with Amines, Hydrazines and Oxidizing Agents
Afrashteh, Ali,Hartke, Klaus
, p. 909 - 912 (2007/10/02)
The reaction of diethyl tetrathiomalonate (1) with primary and secondary aliphatic amines leads to the formation of the malonic acid dithioamides 2; with primary aromatic amines the β-amino dithioacrylates 3 were isolated.Cyclisation of 1 with methyl and
