Department of Chemistry, University of Lu [email protected] School of Life and Environmental Scien Australia Department of Chemistry, Howard Universi † Electronic supplementary information compounds 2Ba, 3Aa, 3Ba, 5Aa and 8 are supramolecular architecture in 5Bb are C–H/O interaction in 5Bb are given in ESI and crystallographic data in CIF 10.1039/c5ra07854g Cite this: RSC Adv., 2015, ...

The energetic and electronic properties of acetylenic-bond-interconnected hexagonal boron nitride sheets (BNyne), in which the number of rows of BN hexagonal rings (denoted as BN width) between neighboring arrays of acetylenic linkages increases consecutively, have been explored using first-principles calculations. Depending on the spatial position of B/N atoms with respect to the acetylenic li...

The alkynylation of a carbonyl compound is a powerful reaction for forming a carbon–carbon s bond. Highly functionalized g-hydroxy-a,b-acetylenic esters RCH(OH)C C CO2Me (A) are promising synthetic intermediates that can be used as precursors to a variety of complex molecules. Since the procedure was reported by Midland et al., alcohols A have mainly been prepared by the treatment of aldehydes ...

Bioassay-guided fractionation of the organic extract of the Red Sea sponge Xestospongia testudinaria led to the isolation of 13 compounds including two new sterol esters, xestosterol palmitate (2) and xestosterol ester of l6'-bromo-(7'E,11'E,l5'E)-hexadeca-7',11',l5'-triene-5',13'-diynoic acid (4), together with eleven known compounds: xestosterol (1), xestosterol ester of 18'-bromooctadeca-7'E...