Palladium-catalyzed synthesis of 2-amino ketones from propargylic carbonates and secondary amines.
نویسندگان
چکیده
A novel palladium-catalyzed approach to 2-amino ketones from arylpropargylic carbonates bearing neutral, electron-rich, and electron-poor aromatic rings and cyclic secondary amines containing useful functional groups such as cyano, chloro, and bromo substituents has been developed.
منابع مشابه
Synthesis of mono- and 1,3-disubstituted allenes from propargylic amines via palladium-catalysed hydride-transfer reaction.
Mono- and 1,3-disubstituted allenes were synthesized from the corresponding propargylamines via palladium-catalysed hydride-transfer reaction. In the current transformation, propargylic amines can be handled as allenyl anion equivalents and introduced into various electrophiles to be transformed into allenes under palladium-catalyzed conditions.
متن کاملPalladium-catalyzed synthesis of polysubstituted quinolines from 2-amino aromatic ketones and alkynes.
A palladium-catalyzed one-pot method for the synthesis of quinolines from commercial or readily available 2-amino aromatic ketones and alkynes is reported for the first time. This transformation offers an alternative method for the synthesis of polysubstituted quinoline.
متن کاملEnantioselective Cu-catalyzed decarboxylative propargylic amination of propargyl carbamates
A copper-catalyzed asymmetric propargylic amination with a chiral ketimine P,N,N-ligand that proceeds via decarboxylation of propargyl carbamates has been developed. The reaction can be performed under the mild condition for a broad range of substrates, providing the corresponding propargylic amines in high yields and with up to 97% ee. This reaction represents a new and facile access to optica...
متن کاملAtom-Efficient Gold(I)-Chloride-Catalyzed Synthesis of α-Sulfenylated Carbonyl Compounds from Propargylic Alcohols and Aryl Thiols: Substrate Scope and Experimental and Theoretical Mechanistic Investigation
Gold(I)-chloride-catalyzed synthesis of α-sulfenylated carbonyl compounds from propargylic alcohols and aryl thiols showed a wide substrate scope with respect to both propargylic alcohols and aryl thiols. Primary and secondary aromatic propargylic alcohols generated α-sulfenylated aldehydes and ketones in 60-97% yield. Secondary aliphatic propargylic alcohols generated α-sulfenylated ketones in...
متن کاملCuBr for KA(2) reaction: en route to propargylic amines bearing a quaternary carbon center.
A highly efficient CuBr-catalyzed coupling of ketones, amines and alkynes (KA(2)) forming propargylic amines bearing a quaternary carbon center with the broadest scope so far has been developed.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Organic & biomolecular chemistry
دوره 10 24 شماره
صفحات -
تاریخ انتشار 2012