A two step route to indoles from haloarenes—a versatile variation on the Fischer indole synthesis
作者:Martyn Inman、Christopher J. Moody
DOI:10.1039/c0cc04306k
日期:——
In a new variation on the Fischer indole synthesis, readily available haloarenes are converted into a wide range of indoles in just two steps by halogen-magnesium exchange, quenching with di-tert-butyl azodicarboxylate, followed by reaction with ketones under acidic conditions.
Amination of Arylboronic Compounds via the Copper-Catalyzed Addition of Arylboronic Esters to Azodicarboxylates
作者:Naoto Chatani、Takeshi Uemura、Mao Yamaguchi
DOI:10.1055/s-0035-1560468
日期:——
Abstract Arylboronic esters add to di-tert-butyl azodicarboxylate under mild reaction conditions (at room temperature) to afford aryl-substituted hydrazine derivatives in good yields. The reaction tolerates a wide variety of functional groups. Arylboronic esters add to di-tert-butyl azodicarboxylate under mild reaction conditions (at room temperature) to afford aryl-substituted hydrazine derivatives
Copper Salt Catalyzed Addition of Arylboronic Acids to Azodicarboxylates
作者:Takeshi Uemura、Naoto Chatani
DOI:10.1021/jo051387x
日期:2005.10.1
[GRAPHIC]The addition of arylboronic acids 1 to azodicarboxylates 2 in the presence of a catalytic amount of a copper salt under mild reaction conditions gives aryl-substituted hydrazines 3 in high yields. The reaction is tolerant of a wide variety of functional groups.
Two-Step Route to Indoles and Analogues from Haloarenes: A Variation on the Fischer Indole Synthesis
作者:Martyn Inman、Anna Carbone、Christopher J. Moody
DOI:10.1021/jo201866c
日期:2012.2.3
In a new variation on the Fischer indole synthesis, readily available haloarenes are converted into a wide range of indoles in just two steps by halogen–magnesium exchange and quenching with di-tert-butyl azodicarboxylate, followed by reaction with aldehydes or ketones under acidic conditions. The protocol, which is readily extended to the preparation of indole isosteres, 4- and 6-azaindoles and thienopyrroles
A convenient method for the intermolecular N-arylation of hydrazides with aryl halides in the presence of a palladium catalyst, a MOP-type ligand, and Cs2CO3 is reported. The reaction gives coupling products in good to excellent yields and has a high tolerance towards a wide spectrum of functional groups.