Singh, Sandip K. published the artcileNovel Synthesis of Immobilized Bronsted- Acidic Ionic Liquid: Application in Lignin Depolymerization, COA of Formula: C4H6O3, the publication is ChemistrySelect (2018), 3(19), 5461-5470, database is CAplus.
Designing of efficient catalyst for the valorization of lignin is a topic of long neglect due to intrinsic properties of lignin. We show designing of an efficient, stable and recyclable Immobilized-Bronsted acidic ionic liquid (I-BAIL), which was further used as a solid acid catalyst for the depolymerization of lignin. The synthesized I-BAIL catalyst with sulfonic acid (-SO3H) groups was found to be stable until 250°C and has 42.2 weight% loading of BAIL anchored on silica framework. The detailed characterization (elemental, Thermogravimetric anal., Fourier transformation-IR, NMR) of catalyst disclosed formation of strong covalent bond between Si and carbon of BAIL, which in turn is responsible for achieving a stable catalyst. The catalyst could successfully depolymerize range of lignin substrates with high mol. weight (60000 Dalton) at 200°C in 1 h to achieve 90% yield of THF soluble products with good mass balance. The formation of products and correlation of products with lignin was achieved with the help of NMR, gel permeation chromatog., gas chromatog., gas chromatog.mass spectrometry, high performance liquid chromatog. etc.
ChemistrySelect published new progress about 19444-84-9. 19444-84-9 belongs to tetrahydrofurans, auxiliary class Tetrahydrofuran,Ester,Alcohol, name is 3-Hydroxydihydrofuran-2(3H)-one, and the molecular formula is C5H8N2O, COA of Formula: C4H6O3.
Referemce:
https://en.wikipedia.org/wiki/Tetrahydrofuran,
Tetrahydrofuran | (CH2)3CH2O – PubChem