A Novel One-Pot Conversion of 2-Naphthols into 1,1′-Binaphthalene-2,2′-Diols
摘要:
A simple two-step, one-pot procedure based on the treatment of sodium 2-naphthoxide with bromine yields 1,1'-binaphthalene-2,2'-diol in a high yield and an excellent purity. The procedure is applicable also to preparation of the symmetrically disubstituted analogues.
Catalytic asymmetric aminative dearomatization of 1‐substituted 2‐naphthols was successfully implemented with electrophilic azodicarboxylates under the catalysis of chiral ScIII/pybox complexes. This intermolecular reaction represents a hitherto unknown enantioselective CN bond‐forming process through direct dearomatization of phenolic compounds to generate chiral nitrogen‐containing quaternary carbon
在手性Sc III / pybox配合物的催化下,亲电的偶氮二羧酸酯成功地实现了1-取代的2-萘酚的催化不对称胺化脱芳香化反应。这种分子间反应是通过酚类化合物直接脱芳香化反应生成手性含氮季碳立体中心而形成的迄今未知的对映选择性CN键形成过程。
A Novel One-Pot Conversion of 2-Naphthols into 1,1′-Binaphthalene-2,2′-Diols
作者:Petr Holý、Martin Bělohradský、Jiří Závada
DOI:10.1080/00397919608004572
日期:1996.7
A simple two-step, one-pot procedure based on the treatment of sodium 2-naphthoxide with bromine yields 1,1'-binaphthalene-2,2'-diol in a high yield and an excellent purity. The procedure is applicable also to preparation of the symmetrically disubstituted analogues.
Mechanism of H<sub>2</sub> Evolution from a Photogenerated Hydridocobaloxime
作者:Jillian L. Dempsey、Jay R. Winkler、Harry B. Gray
DOI:10.1021/ja109351h
日期:2010.12.1
Proton transfer from the triplet excited state of brominated naphthol to a difluoroboryl bridged Co(I)-diglyoxime complex, forming Co(III)H, was monitored via transient absorption. The second-order rate constant for Co(III)H formation is in the range (3.5-4.7) × 10(9) M(-1) s(-1), with proton transfer coupled to excited-state deactivation of the photoacid. Co(III)H is subsequently reduced by excess