In this study, we revise the structures of the marine sponge-derived pyrone-deoxyribosides tetillapyrone and nortetillapyrone, as well as the semisynthetic derivative tetillapyrone diacetate, to the n
Benzylidenecarbene was generated from a new photochemical source, 1-benzylidene-1a,9b-dihydro-1H-cyclopropa[l]phenanthrene, in deuterated benzene at ambient temperature. The carbene undergoes a faci