Bis(azidophenyl)phosphole Building Block for Extended π-Conjugated Systems
作者:Wannes Weymiens、František Hartl、Martin Lutz、J. Chris Slootweg、Andreas W. Ehlers、Jos R. Mulder、Koop Lammertsma
DOI:10.1002/ejoc.201201148
日期:2012.12
Novel bis(azidophenyl)phosphole sulfide buildingblock 8 has been developed to give access to a plethora of phosphole-containing π-conjugated systems in a simple synthetic step. This was explored for the reaction of the two azido moieties with phenyl-, pyridyl- and thienylacetylenes, to give bis(aryltriazolyl)-extended π-systems, having either the phosphole sulfide (9) or the phosphole (10) group as
The Effects of Ring Strain on Cyclic Tetraaryl[5]cumulenes
作者:Bozheng Sun、Meagan S. Oakley、Kota Yoshida、Yanwen Yang、Matteo Tommasini、Chiara Zanchi、Andrea Lucotti、Michael J. Ferguson、Frank Hampel、Mariusz Klobukowski、Rik R. Tykwinski
DOI:10.1002/chem.202200616
日期:2022.7.6
A series of cyclic tetraaryl[5]cumulenes has been synthesized. In the smallest of the cycles, the bond angles of the cumulene are distorted to as little as 172–174° based on crystallographic and computational analyses. Spectroscopic and physical properties as a function of ring size show small but consistent trends as ring strain increases.