N1,N1-Bis(4-aminophenyl)benzene-1,4-diamine trihydrochloride
CAS Number:
114254-48-7
Molecular Formula:
C18H21Cl3N4
A versatile access to vicinal diamine motifs by highly anti-selective asymmetric vinylogous Mannich reactions: an efficient total synthesis of (+)-absouline
Literature Information
Publication Date
2016-03-18
DOI
10.1039/C6QO00022C
Impact Factor
5.281
Authors
Jian-Liang Ye, Hang Chen, Yu-Feng Zhang, Pei-Qiang Huang
View Original
Abstract
We report the asymmetric vinylogous Mannich reactions (VMRs) of N-Boc-2-tert-(butyldimethylsilyloxy)pyrrole (TBSOP) with N-tert-butanesulfinylimines. The reaction is highly anti-diastereoselective and shows good generality for the direct construction of a variety of vicinal anti-diamine motifs that are found in a number of biologically active alkaloids and medicinal agents. A VMR adduct was elaborated in six steps into the 1-aminopyrrolizidine alkaloid (+)-absouline, which constitutes the second and also the most efficient total synthesis of the natural enantiomer of the title alkaloid.
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Source Journal
Organic Chemistry Frontiers
CiteScore:
7.8
Self-citation Rate:
8.7%
Articles per Year:
724
Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry
Recommended Compounds
5,5',5''-(((2,4,6-Trimethylbenzene-1,3,5-triyl)tris(methylene))tris(oxy))triisophthalic acid
CAS Number:
1159974-70-5
Molecular Formula:
C36H30O15
4-(Dimethylaminomethyl)phenylacetic acid hydrochloride
CAS Number:
99985-52-1
Molecular Formula:
C11H16ClNO2
1-(3-Fluorophenyl)-1H-1,2,4-triazole-3-carboxylic acid
CAS Number:
1292369-51-7
Molecular Formula:
C9H6FN3O2
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