Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 2231-57-4, Name is Carbonothioic dihydrazide. In a document, author is Qi, Yu, introducing its new discovery. Category: pyridazines.
Synthesis of an aromatic N-heterocycle derived from biomass and its use as a polymer feedstock
Aromatic N-heterocyclic compounds are very important chemicals, which are currently produced mostly from petroleum. Here we report that a pyridazine-based compound 6-(4-hydroxy-3-methoxyphenyl) pyridazin-3(2H)-one (GSPZ) can be efficiently synthesized by the Friedel-Crafts reaction of guaiacol and succinic anhydride, both of which can be derived from biomass. GSPZ is then treated with bio-based epichlorohydrin to prepare the epoxy resin precursor GSPZ-EP. With 4,4′-diaminodiphenylmethane as curing agent, GSPZ-EP possesses higher glass transition temperature (187 degrees C vs. 173 degrees C) and shows a 140%, 70 and 93% increase in char yield (in N-2), storage modulus (30 degrees C) and Young’s modulus, respectively when compared with a standard petroleum-based bisphenol A epoxy resin. Moreover, the cured GSPZ-EP shows good intrinsic flame retardancy properties and is very close to the V-0 rating of UL-94 test. This work opens the door for production of aromatic N-heterocyclic compounds, which can be derived from biomass and employed to construct high performance polymers.
I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 2231-57-4 help many people in the next few years. Category: pyridazines.
Reference:
Pyridazine – Wikipedia,
,Pyridazine | C4H4N2 – PubChem