The Chemistry ofN-Substituted Benzotriazoles; Part II.1The Preparation of Tertiary Amines Containing Tertiary-Alkyl Groups from Ketones, Secondary Amines, and Organometallic Reagents
Benzotriazole-assisted synthesis of novel mannich bases from ketones and diverse aldehydes
作者:Alan R. Katritzky、Philip A. Harris
DOI:10.1016/s0040-4020(01)81378-8
日期:1990.1
β-amino ketones are prepared in moderate to good yields by the reaction of the lithiumenolates of cyclohexanone, acetophenone, α-tetralone and camphor with the readily available adducts from an aldehyde or ketone, an amine and benzotriazole. Some diastereoselectivity is observed when the benzotriazole adduct is derivedfrom benzaldehyde.
KATRITZKY, ALAN R.;NAJZAREK, ZBIGNIEW;DEGA-SZAFRAN, ZOFIA, SYNTHESIS,(1989) N, C. 66-69
作者:KATRITZKY, ALAN R.、NAJZAREK, ZBIGNIEW、DEGA-SZAFRAN, ZOFIA
DOI:——
日期:——
KATRITZKY, ALAN R.;HARRIS, PHILIP A., TETRAHEDRON, 46,(1990) N, C. 987-996
作者:KATRITZKY, ALAN R.、HARRIS, PHILIP A.
DOI:——
日期:——
Preparation of Tertiary Alkyl Carbinamines, Propargylamines, and <i>α</i>-Heteroarylamines by Ketone-Based Aminoalkylation
作者:Alan R. Katritzky、Hongfang Yang、Sandeep K. Singh
DOI:10.1021/jo048541k
日期:2005.1.1
benzotriazolylamine adducts 8a−i either directly from the corresponding ketone 6a or via enamines 7b−i. Adducts 8a−i on treatment with Grignard reagents, lithium phenylacetylide, or heteroaryllithiums gave tertiaryalkyl carbinamines 9a−h (47−61%), propargylamines 10a−i (30−98%), and α-heteroarylamines 11a−k (44−85%), respectively.
The Chemistry of<i>N</i>-Substituted Benzotriazoles; Part II.<sup>1</sup>The Preparation of Tertiary Amines Containing Tertiary-Alkyl Groups from Ketones, Secondary Amines, and Organometallic Reagents
作者:Alan R. Katritzky、Zbigniew Najzarek、Zofia Dega-Szafran
DOI:10.1055/s-1989-27156
日期:——
The preparation of important pharmaceutically active highly branched tertiary amines by the reaction of Grignard reagents with adducts of cyclic ketones, benzotriazole (or pyrazole) and secondary amines is far superior to previously available routes.