Ma, Xueji published the artcileNHC-alcohol adduct-mediated photocatalytic deoxygenation for the synthesis of 6-phenanthridine derivatives, Recommanded Product: 5,7-Di-tert-butyl-3-phenylbenzo[d]oxazol-3-ium tetrafluoroborate, the publication is Organic & Biomolecular Chemistry (2022), 20(27), 5393-5396, database is CAplus and MEDLINE.
NHC-alc. adduct-mediated deoxygenation of alcs. ROH (R = t-Bu, cyclopentyl, N-bocpiperidin-4-yl, etc.) under photocatalytic conditions is described. This process provides various alkyl radicals, which can react with 2-isocyanobiaryls I (R1 = H, Me, F; R2 = H, Cl; R3 = H, MeO, CF3; R4 = H, F, Me, MeO; R5 = H, MeO, CF3; R6 = H, Me, F) to afford 6-substituted phenanthridine derivatives II in moderate to good yields. This method offered the first example of directly using alcs. as radical sources for 6-phenanthridine synthesis.
Organic & Biomolecular Chemistry published new progress about 1207294-92-5. 1207294-92-5 belongs to benzoxazole, auxiliary class Achiral NHCs Ligands, name is 5,7-Di-tert-butyl-3-phenylbenzo[d]oxazol-3-ium tetrafluoroborate, and the molecular formula is C21H26BF4NO, Recommanded Product: 5,7-Di-tert-butyl-3-phenylbenzo[d]oxazol-3-ium tetrafluoroborate.
Referemce:
https://en.wikipedia.org/wiki/Benzoxazole,
Benzoxazole | C7H5NO – PubChem