Convenient Syntheses of Naturally Occurring Angular and Linear Naphthopyrans†
作者:Madhusudan V. Paradkar、Himanshu M. Godbole、Anup A. Ranade、Augustine R. Joseph
DOI:10.1039/a708718g
日期:——
A convenient synthesis of naturallyoccurring angular naphthopyrans and their 6-demethoxy derivatives is described starting from 2-acetyl-1-naphthols along with the synthesis of linear naphthopyrans from 3-acetyl-2-naphthol.
Annulation of Phenols: Catalytic Behavior of Conventional and 2 D Zeolites
作者:Maksym V. Opanasenko、Mariya V. Shamzhy、Changbum Jo、Ryong Ryoo、Jiří Čejka
DOI:10.1002/cctc.201402007
日期:2014.7
Catalyticbehavior of MFI zeolites differing in thickness of nanosheets and ordering was studied in annulation of phenols, and compared with 3 Dzeolites BEA and MFI containing large or medium pores as well as with micro/mesoporous zeolite USY. The highest conversions of phenols studied were achieved over ordered hexagonally mesostructured zeolite with 1.7 nm wall size, followed by materials possessing