1.
Org Biomol Chem
; 21(13): 2705-2708, 2023 Mar 29.
Artículo
en Inglés
| MEDLINE
| ID: mdl-36919647
RESUMEN
Cyclobutane-fused dihydropyridones can be efficiently synthesized by a completely endo-selective gold-catalyzed cyclization of alkynylcyclobutanes bearing an appended amide, which proceeds under mild conditions. The observed selectivity, which is reversed from that previously observed for the cyclization of related alcohols and acids, is supported by DFT calculations.
2.
Chem Commun (Camb)
; 56(25): 3669-3672, 2020 Mar 28.
Artículo
en Inglés
| MEDLINE
| ID: mdl-32115593
RESUMEN
Previously unknown 4a-aza-12a-borachrysene has been synthesized in only four steps. The reactions of this BN-embedded PAH with bromine and organolithium compounds proceed with complete regioselectivity, resulting in the formation of nine derivatives. One of these, a phenylalkynyl-substituted derivative, exhibits a remarkably high fluorescence quantum yield (ΦF = 0.68).