Conjugate Addition Routes to 2‐Alkyl‐2,3‐dihydroquinolin‐4(1 H )‐ones and 2‐Alkyl‐4‐hydroxy‐1,2‐dihydroquinoline‐3‐carboxylates
نویسندگان
چکیده
منابع مشابه
On Diffeomorphisms Hölder Conjugate to Anosov Ones
We show by means of a counterexample that a C diffeomorphism Hölder conjugate to an Anosov diffeomorphism is not necessarily Anosov. The counterexample can bear higher smoothness up to C. Also we include a result from the 2006 Ph.D. thesis of T. Fisher: a C diffeomorphism Hölder conjugate to an Anosov diffeomorphism is Anosov itself provided that Hölder exponents of the conjugacy and its invers...
متن کاملHydrogenation of pyrrolizin-3-ones; new routes to pyrrolizidines.
Pyrrolizin-3-ones (e.g. 1) can be easily hydrogenated to their hexahydro (pyrrolizidin-3-one) derivatives in the presence of heterogeneous catalysts. Good diastereoselectivity (up to >97:3, depending on catalysts and solvent) can be achieved if the pyrrolizin-3-one is substituted at the 1- (or 7-) position(s), but the selectivity is reduced if both positions are substituted. Subsequent deoxygen...
متن کاملEnantioselective organocatalytic amine conjugate addition.
The first enantioselective organocatalytic amine conjugate addition has been successfully developed. The application of LUMO-lowering iminium catalysis has enabled the highly chemo- and enantioselective 1,4-addition of a rationally designed N-silyloxycarbamate nucleophile (HOMO-raised) to alpha,beta-unsaturated aldehydes. Imidazolidinone 2*pTSA was found to catalyze the addition of various orth...
متن کاملConjugate addition–enantioselective protonation reactions
The addition of nucleophiles to electron-deficient alkenes represents one of the more general and commonly used strategies for the convergent assembly of more complex structures from simple precursors. In this review the addition of diverse protic and organometallic nucleophiles to electron-deficient alkenes followed by enantioselective protonation is summarized. Reactions are first categorized...
متن کاملRhodium-catalyzed C-H activation and conjugate addition under mild conditions.
An efficient rhodium(III)-catalyzed C-H activation and subsequent conjugate addition was achieved under mild conditions. The reaction utilized inert arenes to replace stoichiometric organometallic reagents and can tolerate various functional groups as well as air and water.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: European Journal of Inorganic Chemistry
سال: 2019
ISSN: 1434-1948,1099-0682
DOI: 10.1002/ejic.201901036