Improved Stereoselective Synthesis of Optically Active Methylene Lactone, Key Intermediate for the Synthesis of 1,2-Oxidized Furofuran Lignan, by Direct α-Methylenation to Butanolide

2000 ◽  
Vol 64 (10) ◽  
pp. 2209-2215 ◽  
Author(s):  
Satoshi YAMAUCHI ◽  
Nobuyuki YAMAMOTO ◽  
Yoshiro KINOSHITA
Keyword(s):  
Stereoselective Synthesis ◽  
Optically Active ◽  
Active Methylene

Stereoselective synthesis of optically active cyclopenta[c]pyridines and tetrahydropyridines

2012 ◽  
Vol 23 (9) ◽  
pp. 662-669 ◽  
Author(s):  
Serdar Sezer ◽  
Yasemin Gümrükçü ◽  
İrem Bakırcı ◽  
M. Yağız Ünver ◽  
Cihangir Tanyeli
Keyword(s):  
Stereoselective Synthesis ◽  
Optically Active

A new approach to the stereoselective synthesis of trans-3-carbamoyl-β-lactam moieties

2017 ◽  
Vol 41 (6) ◽  
pp. 2479-2489 ◽  
Author(s):  
Anna Zakaszewska ◽  
Ewelina Najda-Mocarska ◽  
Sławomir Makowiec
Keyword(s):  
Stereoselective Synthesis ◽  
Optically Active ◽  
Thermal Generation ◽  
New Approach

Optically active 1,4-disubstituted-3-carbamoyl-azetidinones are synthesized from 5-[(N-arylamino)(hydroxyl)methylene]-2,2-dimethyl-1,3-dioxa-4,6-diones and chiral aldimines via thermal generation of carbamoyl ketenes and subsequent [2+2] cycloaddition.

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