Chemoselective Homologation–Deoxygenation Strategy Enabling the Direct Conversion of Carbonyls into (<i>n+1</i>)-Halomethyl-Alkanes
作者:Margherita Miele、Andrea Citarella、Thierry Langer、Ernst Urban、Martin Zehl、Wolfgang Holzer、Laura Ielo、Vittorio Pace
DOI:10.1021/acs.orglett.0c02831
日期:2020.10.2
The sequential installation of a carbenoid and a hydride into a carbonyl, furnishing halomethyl alkyl derivatives, is reported. Despite the employment of carbenoids as nucleophiles in reactions with carbon-centered electrophiles, sp3-type alkyl halides remain elusive materials for selective one-carbon homologations. Our tactic levers on using carbonyls as starting materials and enables uniformly high
PROTECTING GROUPS WITH INCREASED PHOTOSENSITIVITIES
申请人:——
公开号:US20020016472A1
公开(公告)日:2002-02-07
Protecting groups derived from a halogenated coumarin group, a quinoline-2-one group, a xanthene group, a thioxanthene group, a selenoxanthene group, or an anthracene group are described. The protecting groups is photolabile and can be removed by irradiating the group with light, such as flash photolysis with ultraviolet radiation or pulsed infrared radiation.
Protecting groups with increased photosensitivities
申请人:The Regents of the University of California
公开号:US06472541B2
公开(公告)日:2002-10-29
Protecting groups derived from a halogenated coumarin group, a quinoline-2-one group, a xanthene group, a thioxanthene group, a selenoxanthene group, or an anthracene group are described. The protecting groups is photolabile and can be removed by irradiating the group with light, such as flash photolysis with ultraviolet radiation or pulsed infrared radiation.