Synthesis and Properties of Porphyrin-linked Indolizine
摘要:
The synthesis of porphyrin-linked indolizine has been achieved for the first time in a simple process from the reaction between a 5-formylindolizine (8) and dipyrrolomethane (10) giving the desired 1,7-bisindolidinoporphyrin (12). The electronic effect of the heterocyclic nuclei (12) is prominently observed in the Soret band of the UV-VIS spectrum. Temperature-dependence H-1 NMR analysis of 12 suggests the existence of an association of 12 causing restricted rotation around the bond between indolizine and porphyrin.
The present invention relates generally to methods and compositions comprising macrocycles. In some embodiments, the present invention provides methods for modifying macrocycles comprising a pendant group. In some cases, the pendent group comprises a hydrolyzable group. The present invention also provides methods for metallating a macrocycle using microwave energy, in some embodiments.
[EN] INHIBITING HYDROCARBON HYDRATE AGGLOMERATION<br/>[FR] INHIBITION DE L'AGGLOMÉRATION D'HYDRATES D'HYDROCARBURES
申请人:COMMW SCIENT IND RES ORG
公开号:WO2018218281A1
公开(公告)日:2018-12-06
A process for inhibiting the formation of gas hydrates in a hydrocarbon fluid comprising adding to the hydrocarbon fluid, a gas hydrate anti-agglomerate which is a biodegradable anti-agglomerant derived from a naturally occurring substance.
The present invention provides dichromic fluorescent compounds, as well as processes for making and methods for using the dichromic fluorescent compounds.
本发明提供了二色荧光化合物,以及制备这些二色荧光化合物的方法和使用这些二色荧光化合物的方法。
Microwave-assisted synthesis of non-substituted tripyrrane, tetrapyrrane and pentapyrrane
作者:Irena Saltsman、Zeev Gross
DOI:10.1016/j.tetlet.2007.11.082
日期:2008.1
The microwave-assisted one-step condensation of aqueous formaldehyde with pyrrole was successfully applied for the preparation of non-substituted tri-, tetra- and pentapyrranes with reasonable yields. All three compounds are important precursors to advanced porphyrins and porphyrin analogs. The advantages of this method are short reaction times, clean reaction mixtures and work in the non-toxic and
A method of making a metalloporphyrin is carried out by reacting (i) a linear tetrapyrrole, said linear tetrapyrrole having a 19-acyl group and a 1-protecting group, with (ii) a metal salt under basic conditions to produce the metalloporphyrin. Products produced by such methods and intermediates useful for carrying out such methods are also described.