The cheap, readily available and air stable catalyst was used as the desulfurization agent for the conversion of aniline to isothiocyanates in one pot two step reaction under mild reaction conditions.
A one-pot preparation of cyanamide from dithiocarbamate using molecular iodine
作者:Jayashree Nath、Bhisma K. Patel、Latonglila Jamir、Upasana Bora Sinha、K. V. V. V. Satyanarayana
DOI:10.1039/b914283p
日期:——
method for the synthesis of cyanamides from dithiocarbamate salts via a double desulfurization strategy using molecular iodine is disclosed. Dithiocarbamates, by the action of iodine yield isothiocyanates in situ, which on treatment with aqueous NH3 give thioureas. The thioureas so generated undergo further oxidative desulfurization with I2 giving corresponding cyanamides in good yields. Environmental
Birhodanines and their sulfur analogues for air-stable n-channel organic transistors
作者:Kodai Iijima、Yann Le Gal、Toshiki Higashino、Dominique Lorcy、Takehiko Mori
DOI:10.1039/c7tc02886e
日期:——
A series of thin-film n-channelorganic field-effect transistors based on various birhodanines, 3,3′-dialkyl-5,5′-bithiazolidinylidene-2,2′-dione-4,4′-dithiones (OS-R) and their sulfur analogues, 3,3′-dialkyl-5,5′-bithiazolidinylidene-2,4,2′,4′-tetrathiones (SS-R) are studied. The SS-R compounds have tilted stacking crystal structures, whereas the OS-R compounds show basically herringbone structures
Bromineless Bromine as an Efficient Desulfurizing Agent for the Preparation of Cyanamides and 2-Aminothiazoles from Dithiocarbamate Salts
作者:Ramesh Yella、Veerababurao Kavala、Bhisma K. Patel
DOI:10.1080/00397911003642658
日期:2011.2.28
desulfurizing agent in the preparation of organic cyanamides and substituted thiazoles starting from dithiocarbamicacidsalts. In this approach, alkyl/aryl isothiocyantes were first obtained by the desulfurization of dithiocarbamicacidsalts with EDPBT. The in situ–generated isothiocyanates reacts with an aqueous ammonia, forming alkyl or aryl thioureas, which on subsequent oxidative desulfurization
A Novel One-pot Synthesis of Isothiocyanates and Cyanamides from Dithiocarbamate Salts Using Environmentally Benign Reagent Tetrapropylammonium Tribromide
作者:Neivotsonuo Bernadette Kuotsu、Latonglila Jamir、Tovishe Phucho、Upasana Bora Sinha
DOI:10.17344/acsi.2017.3342
日期:2017.12.15
A highly efficient and simple protocol for the synthesis of isothiocyanates and cyanamides from their respective amines in the presence of a mild, efficient, and non-toxic reagent tetrapropylammonium tribromide is described. High environmental acceptability of the reagents, cost effectiveness and high yields are the important attributes of this methodology.