Formation of N-Alkylpyrroles via Intermolecular Redox Amination
摘要:
A wide variety of aldehydes, ketones, and lactols undergo redox amination when allowed to react with 3-pyrroline in the presence of a mild Bronsted acid catalyst. This reaction utilizes the inherent reducing power of 3-pyrroline to perform the equivalent of a reductive amination to form alkyl pyrroles. In doing so, the reaction avoids stoichiometric reducing agents that are typically associated with reductive aminations. Moreover, the redox amination protocol allows access to alkyl. pyrroles that cannot be made via standard reductive amination.
Decarboxylative formation of N-alkyl pyrroles from 4-hydroxyproline
作者:Indubhusan Deb、Daniel J. Coiro、Daniel Seidel
DOI:10.1039/c1cc11560j
日期:——
N-Alkyl pyrroles are obtained in a single step from 4-hydroxyproline and aldehydes in just 15 min under microwave irradiation.
在微波辐射下,仅用15分钟即可从4-羟基脯氨酸和醛一步获得N-烷基吡咯。
ORGANIC ELECTROLUMINESCENCE MATERIAL AND ELECTROLUMINESCENCE DEVICE USING THE SAME
申请人:Tada Hiroshi
公开号:US20060263639A1
公开(公告)日:2006-11-23
An organic electroluminescence material of the present invention includes, in order to provide an durable organic EL device emitting light of high brightness, a compound shown by the general formula (A-I) or (B-I) (as explained in the specification) wherein, A
1
to A
3
which may be the same or different, are independently each a substituent shown by the general formula (A-II) (as explained in the specification): and a
1
, b
1
, and b
2
are independently each an aryl group which may be substituted, a
1
having at least one substituent shown by the general formula (B-II) (as explained in the specification), and b
1
and b
2
each having at least one substituent shown by the general formula (B-III) (as explained in the specification), and b
1
and b
2
may be the same of different.
Formation of <i>N</i>-Alkylpyrroles via Intermolecular Redox Amination
作者:Nirmal K. Pahadi、Miranda Paley、Ranjan Jana、Shelli R. Waetzig、Jon A. Tunge
DOI:10.1021/ja907357g
日期:2009.11.25
A wide variety of aldehydes, ketones, and lactols undergo redox amination when allowed to react with 3-pyrroline in the presence of a mild Bronsted acid catalyst. This reaction utilizes the inherent reducing power of 3-pyrroline to perform the equivalent of a reductive amination to form alkyl pyrroles. In doing so, the reaction avoids stoichiometric reducing agents that are typically associated with reductive aminations. Moreover, the redox amination protocol allows access to alkyl. pyrroles that cannot be made via standard reductive amination.