Regioselective allylation and propargylation using acylsilanes: facile synthesis of PGE3 and F3α methyl ester

Tetrahedron ◽  
1992 ◽  
Vol 48 (11) ◽  
pp. 1969-1980 ◽  
Author(s):  
Akira Yanagisawa ◽  
Shigeki Habaue ◽  
Hisashi Yamamoto
Keyword(s):  
Methyl Ester ◽  
Facile Synthesis

Unnatural Amino Acids. 1. A Facile Synthesis of the Methyl Ester of Aziridine-2-carboxylic Acid

1997 ◽  
Vol 1 (4) ◽  
pp. 259-263 ◽  
Author(s):  
Pēteris Trapencieris ◽  
Ivars Kalviņš ◽  
Larisa Kauliņa ◽  
Valerjans Kauss
Keyword(s):  
Amino Acids ◽  
Carboxylic Acid ◽  
Methyl Ester ◽  
Unnatural Amino Acids ◽  
Facile Synthesis

Wittig Reactions of Maleimide Derived Stabilized Ylides with Alkyl Pyruvates: Concise Approach to Methyl Ester of (±)-Chaetogline A

Synthesis ◽  
2021 ◽  
Author(s):  
Narshinha Argade ◽  
santosh Vasantrao Shelar
Keyword(s):  
Methyl Ester ◽  
Facile Synthesis ◽  
Phosphorous Pentoxide ◽  
Wittig Olefination ◽  
Methyl Pyruvate ◽  
Wittig Reactions ◽  
Essential Reactions ◽  
Carbonyl Function

A facile synthesis of methyl ester of chaetogline A is reported starting from the corresponding methyl 1-methyltryptophanate derived maleimide. A stereoselective Wittig olefination with a carbonyl function in methyl pyruvate followed by phosphorous pentoxide induced regioselective dehydrative cyclization are the essential reactions. An acid induced thermodynamically driven stereoselective β- to α-position migration of the exocyclic carbon−carbon double unit in ethyl tetrahydroindolizinoindolylidenepropanoate is described.

Biotemplated facile synthesis of three‐dimensional micro/nanoporous tin oxide: improving the flammable and mechanical properties of flexible PVC

2019 ◽  
Vol 14 (8) ◽  
pp. 828-830 ◽  
Author(s):  
Weihua Meng ◽  
Weihong Wu ◽  
Weiwei Zhang ◽  
Luyao Cheng ◽  
Yunhong Jiao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tin Oxide ◽  
Three Dimensional ◽  
Facile Synthesis
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