The asymmetric unit of the title compound, C(47)H(58)N(6)O(6), comprises three independent mol-ecules, in one of which one tert-butyl group is disordered in a 1:1 ratio. The mol-ecule is a di(ar-yl)methane having two aliphatic and one N-heterocyclic substituent in each aryl ring. For the mol-ecule having the disordered tert-butyl group, the aryl rings make an angle of 115.3 (2)° at the methyl-e...

The ability of an unconstrained boron dipyrromethene dye to report on changes in local viscosity is improved by appending a single aryl ring at the lower rim of the dipyrrin core. Recovering the symmetry by attaching an identical aryl ring on the opposite side of the lower rim greatly diminishes the sensory activity, as does blocking rotation of the meso-aryl group. On the basis of viscosity- a...

Compounds containing aryl/heteroaryl acetic acid and aryl/heteroaryl ethylamine cores play important roles in the pharmaceutical field. Compounds containing aryl/heteroaryl acetic acid units form a large group of non-steroidal anti-inflammatory drugs such as Indomethacin [1], Diclophenac [2], Sulindac [3], Ketorolac [4], and many others. Also, this subunit appears in a number of antifungal [5],...

Several 2-(4-chlorophenyl)-N-(4-oxo-2-aryl(l,3,thiazolidin-3-yl))acetamides 2, N-[3-chloro-4-(2-aryl)-2-oxo-azetidinyl]-2-(4-chlorophenyl)acetamides 3, N-(4-oxo-2-aryl(1,3,-thiadiazolidin-3-yl){4-[5-oxo-2-phenyl-4-(phenylmethylene) (2imidazolinyl)phenyl}carboxamides 7 and N-(3-chloro-2-oxo-4-arylazetidinyl){4-[5-oxo-2-phenyl-4-(phenylmethylene)(2imidazolinyl)] phenyl}carboxamides 8 have been sy...

The use of a bromo-substituent as blocking group at the C2-position of 3-substituted thiophenes allows the regioselective introduction of aryl substituents at C5-position via Pd-catalysed direct arylation. With 1 mol % of a phosphine-free Pd catalyst, KOAc as the base and DMA as the solvent and various electron-deficient aryl bromides as aryl sources, C5-(hetero)arylated thiophenes were synthes...

This account summarizes our work in the field of direct C-H bond functionalization. We have explored methods in the area of directing group assisted C(sp 2 )-H and C(sp 3 )-H activation and investigated arylation as well as deuteration reactions. In these transformations either ruthenium or palladium catalysts were applied. In case of C(sp 2 )-H activation, we developed a protocol for the synth...

The majority of alkynyl(aryl)iodonium salts reported in the literature are derived from iodobenzene. This article describes the effects of varying this iodoarene building block on the synthesis, reactivity and stability of these salts. Two procedures to synthesize a variety of known and novel alkynyl(aryl)iodonium tosylates directly from the iodoarene are reported. In the reactions of these sal...