Efficient Cu-catalyzed base-free C–S coupling under conventional and microwave heating. A simple access to S-heterocycles and sulfides
作者:Silvia M Soria-Castro、Alicia B Peñéñory
DOI:10.3762/bjoc.9.50
日期:——
yields, by using 1,10-phenanthroline as a ligand in toluene at 100 degrees C after 24 h. Under microwaveirradiation the time was drastically reduced to 2 h. Both procedures are simple and involve a low-cost catalytic system. This methodology was also applied to the "one-pot" synthesis of target heterocycles, such as 3H-benzo[c][1,2]dithiol-3-one and 2-methylbenzothiazole, alkyl aryl sulfides, diaryl
The reaction between arenediazonium tetrafluoroborates and alkaline thiocarboxylates in DMSO: A convenient access to aryl thiolesters and other aromatic sulfur derivatives.
thiobenzoate and arenediazonium tetrafluoroborates in DMSO leads to the corresponding aryl thiolesters 1 which can either be isolated or further reacted providing a convenient one-pot access to a number of other aromatic sulfur derivatives.
Molecular Tunnel Junctions Based on π-Conjugated Oligoacene Thiols and Dithiols between Ag, Au, and Pt Contacts: Effect of Surface Linking Group and Metal Work Function
作者:BongSoo Kim、Seong Ho Choi、X.-Y. Zhu、C. Daniel Frisbie
DOI:10.1021/ja207751w
日期:2011.12.14
The tunneling resistance and electronic structure of metal-molecule-metaljunctions based on oligoacene (benzene, naphthalene, anthracene, and tetracene) thiol and dithiol molecules were measured and correlated using conducting probe atomic force microscopy (CP-AFM) in conjunction with ultraviolet photoelectron spectroscopy (UPS). Nanoscopic tunneljunctions (~10 nm(2)) were formed by contacting oligoacene