69509-35-9Relevant academic research and scientific papers
Selective detection of DABCO using a supramolecular interconversion as fluorescence reporter
Paul, Indrajit,Samanta, Debabrata,Gaikwad, Sudhakar,Schmittel, Michael
supporting information, p. 1371 - 1378 (2019/07/10)
The quantitative double self-sorting between the three-component rectangle [Cu4(1)2(2)2]4+ and the four-component sandwich complex [Cu2(1)(2)(4)]2+ is triggered by inclusion and release of DABCO (4). The fully reversible and clean switching between two multicomponent supramolecular architectures can be monitored by fluorescence changes at the zinc porphyrin sites. The structural changes are accompanied by a huge spatial contraction/expansion of the zinc porphyrin-zinc porphyrin distances that change from 31.2/38.8 ? to 6.6 ? and back. The supramolecular interconversion was used for the highly selective detection of DABCO in a mixture of other similar compounds.
Production of Formamides from CO and Amines Induced by Porphyrin Rhodium(II) Metalloradical
Zhang, Jiajing,Zhang, Wentao,Xu, Minghui,Zhang, Yang,Fu, Xuefeng,Fang, Huayi
supporting information, p. 6656 - 6660 (2018/05/24)
It is of fundamental importance to transform carbon monoxide (CO) to petrochemical feedstocks and fine chemicals. Many strategies built on the activation of C≡O bond by π-back bonding from the transition metal center were developed during the past decades. Herein, a new CO activation method, in which the CO was converted to the active acyl-like metalloradical, [(por)Rh(CO)]? (por = porphyrin), was reported. The reactivity of [(por)Rh(CO)]? and other rhodium porphyrin compounds, such as (por)RhCHO and (por)RhC(O)NHnPr, and corresponding mechanism studies were conducted experimentally and computationally and inspired the design of a new conversion system featuring 100% atom economy that promotes carbonylation of amines to formamides using porphyrin rhodium(II) metalloradical. Following this radical based pathway, the carbonylations of a series of primary and secondary aliphatic amines were examined, and turnover numbers up to 224 were obtained.
