36383-33-2

Upstream product

• 3316-09-4 1,2-dihydroxy-4-nitrobenzene 
• 108-24-7 acetic anhydride 
• 28387-13-5 1,2-bis(benzyloxy)-4-nitrobenzene 
• 619-08-9 2-chloro-4-nitrophenol 
• 100-02-7 4-nitro-phenol 

Downstream Products

• 159788-47-3 Fumarsaeuremono-3,4-diacetoxyanilid 
• 159788-32-6 3,4-Diacetoxycarbanilidsaeure-norborn-5-en-2,3-dicarboximidester 
• 74332-02-8 4-N-acetylamino-1,2-benzenediol diacetate 
• 37519-14-5 3-Hydroxyacetaminophen 
• 28584-06-7 2-[(3,4-Diacetoxy-phenylamino)-methylene]-malonic acid diethyl ester 
• 71573-24-5 4-amino-1,2-benzenediol diacetate 

Relevant academic research and scientific papers

Thiazolocatechol: Electron-Withdrawing Catechol Anchoring Group for Dye-Sensitized Solar Cells

Anchoring groups adopting a five-membered bidentate chelating are attractive to realize high power conversion efficiency (η) and long-term durability in dye-sensitized solar cells (DSSCs). In this regard, we chose catechol as an anchoring group that can a

Synthesis of a new substrate for exo-galactofuranosidases, 2-hydroxy-4-nitrobenzene 1-yl β-d-galactofuranoside

1,2,3,5,6-Penta-O-acetyl β-D-galactofuranose was synthesized by peracetylation of D-galactose in boiling pyridine followed by fractional crystallization. The first crops of crystals were 1,2,3,5,6-penta-O-acetyl β-D-galactopyranose, then mother liquor was concentrated and seeded with some crystals of 1,2,3,5,6-penta-O-acetyl β-D-galactofuranose. The crystalline mass obtained was recrystallized from ethanol. Optical rotation was a constant guide along the preparation of the furanosic precursor, due to the fact that only pentaacetate-β-furanose is levorotatory of the four D-galactose pentaacetate isomers. Bromination of penta-O-acetyl β-D-galactofuranose with hydrogen bromide produced the glycosylation donor, 1-bromo 1-deoxy 2,3,5,6-tetra-O-acetyl α-D-galactofuranose. The aglycon, 1,2-dihydroxy 4-nitrobenzene, was prepared by acidic hydrolysis of 2-hydroxy 5-nitrophenyl sulfate, synthesized at its turn by reacting 4-nitrophenol and potassium persulfate in a strongly alkaline solution conferred by potassium hydroxide. All intermediates and products were structurally characterized by chemical and physical methods.

Efficient synthesis of 5,6-dihydroxyindole dimers, key eumelanin building blocks, by a unified o-ethynylaniline-based strategy for the construction of 2-linked biindolyl scaffolds

(Chemical Equation Presented) A unified convenient strategy for the synthesis of 5,6-dihydroxyindole-derived 2,7′-, 2,2′-, and 2,3′-biindolyls is reported, which is based on proper manipulation of key o-ethynylaniline precursors. By the same methodology 5