Chalcogenides as organocatalysts.
نویسندگان
چکیده
In this review, we describe the many roles chalcogenides play as organocatalysts. Chalcogens, or the oxygen family, * To whom correspondence should be addressed. Phone: +00-44-1179546315. Fax: +00-44-117-9298611. E-mail: [email protected]. † University of Bristol. ‡ Current Address: Department of Biochemistry, University of Wisconsins Madison, 433 Babcock Drive, Madison, Wisconsin 53706-1544. 5841 Chem. Rev. 2007, 107, 5841−5883
منابع مشابه
Organocatalysts with carbon-centered activity for CO2 reduction with boranes.
We report two organocatalysts for CO2 hydroboration to methylborylethers, which upon hydrolysis can produce methanol. These organocatalysts feature carbon-centered reversible CO2 binding, broad borane scopes, and high catalytic activities.
متن کاملNovel amide-functionalized chloramphenicol base bifunctional organocatalysts for enantioselective alcoholysis of meso-cyclic anhydrides
A family of novel chloramphenicol base-amide organocatalysts possessing a NH functionality at C-1 position as monodentate hydrogen bond donor were developed and evaluated for enantioselective organocatalytic alcoholysis of meso-cyclic anhydrides. These structural diversified organocatalysts were found to induce high enantioselectivity in alcoholysis of anhydrides and was successfully applied to...
متن کاملOrtho-substituted iodobenzenes as novel organocatalysts for bromination of alkenes.
Suitably ortho-substituted iodobenzenes act as organocatalysts for the transfer of electrophilic bromine from N-bromosuccinimide to alkenes via the intermediacy of bromoiodinanes.
متن کاملCinchona alkaloid-based chiral catalysts act as highly efficient multifunctional organocatalysts for the asymmetric conjugate addition of malonates to nitroolefins.
New pentaerythritol tetrabromide-based chiral quaternary ammonium salts acting as organocatalysts (7a and 7b) have been prepared and used as organocatalysts for enantioselective Michael addition reactions between various nitroolefins and Michael donors (malonates) under mild reaction conditions, such as lower concentration of base and catalyst and room temperature, with very good chemical yield...
متن کاملELECTRICAL PROPERTIES OF RARE EARTH CHALCOGENIDES UNDER THE EFFECT OF PRESSURE Adhikari,
The numerical analysis of electrical properties involved in transport mechanism such as carrier concentration, carrier mobility, carrier effective mass, electrical resistivity and electrical conductivity for some rare earth chalcogenides is discussed. The formulae are derived and used to obtain numerical values of these electrical parameters, which are useful to describe the electrical behavior...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Chemical reviews
دوره 107 12 شماره
صفحات -
تاریخ انتشار 2007