An enantioselective strategy for the total synthesis of (S)-tylophorine via catalytic asymmetric allylation and a one-pot DMAP-promoted isocyanate formation/Lewis acid catalyzed cyclization sequence

2014 ◽  
Vol 12 (22) ◽  
pp. 3616-3621 ◽  
Author(s):  
Bo Su ◽  
Hui Zhang ◽  
Meng Deng ◽  
Qingmin Wang
Keyword(s):  
Total Synthesis ◽  
Lewis Acid ◽  
Asymmetric Allylation ◽  
One Pot ◽  
Acid Catalyzed ◽  
Catalytic Asymmetric

A novel total synthesis of (S)-tylophorine is reported, featuring asymmetric allylation and cascade isocyanate formation and cyclization.

A heavy metal- and oxidant-free, one-pot synthesis of pyridines and fused pyridines based on a Lewis acid-catalyzed multicomponent reaction

2014 ◽  
Vol 50 (82) ◽  
pp. 12270-12272 ◽  
Author(s):  
V. P. Alex Raja ◽  
Giammarco Tenti ◽  
Subbu Perumal ◽  
J. Carlos Menéndez
Keyword(s):  
Heavy Metal ◽  
Lewis Acid ◽  
Multicomponent Reaction ◽  
One Pot ◽  
One Pot Synthesis ◽  
Acid Catalyzed

Pyridines and fused pyridines are accessible by a combination of a Lewis acid-catalyzed multicomponent reaction and aromatization involving loss of a 2-furylmethyl chain.

Formal Total Synthesis of (−)-Emetine Using Catalytic Asymmetric Allylation of Cyclic Imines as a Key Step

2006 ◽  
Vol 8 (7) ◽  
pp. 1295-1297 ◽  
Author(s):  
Takashi Itoh ◽  
Michiko Miyazaki ◽  
Hiromi Fukuoka ◽  
Kazuhiro Nagata ◽  
Akio Ohsawa
Keyword(s):  
Total Synthesis ◽  
Asymmetric Allylation ◽  
Catalytic Asymmetric

Lewis acid-catalyzed tandem cyclization of in situ generated o-quinone methides and arylsulfonyl hydrazides for a one-pot entry to 3-sulfonylbenzofurans

2019 ◽  
Vol 6 (24) ◽  
pp. 3929-3933 ◽  
Author(s):  
Fan-Xiao Meng ◽  
Ruo-Nan Wang ◽  
Hong-Li Huang ◽  
Shu-Wen Gong ◽  
Qian-Li Li ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Quinone Methides ◽  
One Pot ◽  
Acid Catalyzed ◽  
Tandem Cyclization ◽  
First Time

Lewis acid-mediated one-pot tandem cyclization of o-QMs with arylsulfonyl hydrazides was described for the first time and the corresponding 3-sulfonylbenzofuran products were obtained in moderate to good yields.

Catalytic asymmetric total synthesis of (+)-artalbic acid

2016 ◽  
Vol 52 (60) ◽  
pp. 9391-9393 ◽  
Author(s):  
Toyoharu Kobayashi ◽  
Ryuta Shioi ◽  
Ai Ushie ◽  
Hideki Abe ◽  
Hisanaka Ito
Keyword(s):  
Total Synthesis ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Asymmetric Allylation ◽  
Asymmetric Total Synthesis ◽  
Catalytic Asymmetric

The first total synthesis of (+)-artalbic acid has been accomplished using asymmetric allylation of an acetoacetate derivative with a phase-transfer catalyst.

Lewis acid catalyzed diels-alder reactions of S-(+)-carvone1 with silyloxy dienes. Total synthesis of (+)-α-cyperone.

Tetrahedron ◽  
1992 ◽  
Vol 48 (15) ◽  
pp. 3121-3130 ◽  
Author(s):  
Anja A. Haaksma ◽  
Ben J.M. Jansen ◽  
Aede de Groot
Keyword(s):  
Total Synthesis ◽  
Lewis Acid ◽  
Diels Alder ◽  
Acid Catalyzed
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