Rueping, Magnus; Dufour, Jeremy; Maji, Modhu Sudan published the artcile< Relay catalysis: combined metal catalyzed oxidation and asymmetric iminium catalysis for the synthesis of bi- and tricyclic chromenes>, Quality Control of 3893-18-3, the main research area is chiral bicyclic tricyclic chromene preparation; asym oxidative iminium allenamine cascade propargyl alc.
A catalytic asym. oxidative iminium-allenamine cascade allows the use of propargyl alcs. as stable substrates and yields valuable chiral bicyclic 4H-chromenes. E.g., in presence of prolinol derivative (I), tetrapropylammonium perruthenate, and N-methylmorpholine N-oxide, the enantioselective oxidative cascade of (E)-HOC6H4CH:CHNO2 and PhCCCH2OH gave 81% chiral bicyclic 4H-chromene (II). A subsequent Michael addition-condensation domino reaction provides complex tricyclic 4H-chromenes in a highly enantioselective fashion.
Chemical Communications (Cambridge, United Kingdom) published new progress about Alcohols, propargyl Role: RCT (Reactant), RACT (Reactant or Reagent). 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Quality Control of 3893-18-3.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary