A synergistic catalytic method combining photoredox catalysis, hydrogen‐atom transfer, and proton‐reduction catalysis for the dehydrogenative silylation of alkenes was developed. With this approach, a highly concise route to substituted allylsilanes has been achieved under verymildreactionconditionswithout using oxidants. This transformation features good to excellent yields, operational simplicity
Rhodium(III)-Catalyzed Aerobic Oxidative C–H Olefination of Unsaturated Acrylamides with Unactivated Olefins
作者:Ravichandran Logeswaran、Masilamani Jeganmohan
DOI:10.1021/acs.orglett.0c03981
日期:2021.2.5
unactivated alkenes via vinylic C–H activation has been developed. The present cross-coupling reaction was examined with a variety of differently functionalized acrylamides and unactivated olefins. In these reactions, highly valuable amide-functionalized butadienes were prepared in good to excellent yields. This protocol was also compatible with Weinrebamides. A possible reaction mechanism involving the chelation-assisted
quantitative amount of metal oxidants. Although transferhydrogenation and C-H alkenylation are two important areas that evolved independently, we herein report the first iridium-catalyzed cross-coupling reactions of alkenes by integration of directed C(alkenyl)-H alkenylation and transferhydrogenation to obviate the usage of a metal oxidant, employing a hydrogen acceptor such as inexpensive chloranil.
Methods of manufacturing deodorants, and deodorants resulting thereof
申请人:Hu Jinlian
公开号:US20050232880A1
公开(公告)日:2005-10-20
This invention provides a deodorant capable of releasing deodorant agents at certain temperatures and having improved adherence to textiles. The deodorant of this invention includes polymer particles formed by reacting a main monomer of (N-substituted alkyl)acrylamide, a functional monomer for bonding the polymer particles to a fibrous substrate, and a cross-linking agent. A deodorant agent is loaded to the polymer particles.