The synthesis of highly functionalized seven-membered allyl ethers using palladium-catalyzed alkoxyallylation of activated olefins and ring-closing olefin metathesis

2000 ◽  
Vol 41 (52) ◽  
pp. 10167-10170 ◽  
Author(s):  
Roger L Xie ◽  
James R Hauske
Synthesis ◽  
2020 ◽  
Author(s):  
Lili Shi ◽  
Junkai Fu ◽  
Shuangqiu Gao ◽  
Le Chang ◽  
Binglin Wang

AbstractThe Mizoroki–Heck reaction is considered as one of the most ingenious and widely used methods for constructing C–C bonds. This reaction mainly focuses on activated olefins (styrenes, acrylates, or vinyl ethers) and aryl/vinyl (pseudo) halides. In comparison, the studies on unactivated alkenes and alkyl electrophiles are far less due to the low reactivity, poor selectivity, as well as competitive β-H elimination. In the past years, a growing interest has thus been devoted and significant breakthroughs have been achieved in the employment of unactivated alkenes and alkyl electrophiles as the reaction components, and this type of coupling is called as Heck-type or Heck-like reaction, which distinguishes from the traditional Heck reaction. Herein, we give a brief summary on Heck-type reaction between unactivated alkenes and alkyl electrophlies, covering its initial work, recent advancements, and mechanistic discussions.1 Introduction2 Intramolecular Heck-Type Reaction of Unactivated Alkenes and Alkyl Electrophiles2.1 Cobalt-Catalyzed Intramolecular Heck-Type Reaction2.2 Palladium-Catalyzed Intramolecular Heck-Type Reaction2.3 Nickel-Catalyzed Intramolecular Heck-Type Reaction2.4 Photocatalysis and Multimetallic Protocol for Intramolecular Heck-Type Reaction3 Intermolecular Heck-Type Reaction of Unactivated Alkenes and Alkyl Electrophiles3.1 Electrophilic Trifluoromethylating Reagent as Reaction Partners3.2 Alkyl Electrophiles as Reaction Partners4 Oxidative Heck-Type Reaction of Unactivated Alkenes and Alkyl Radicals5 Conclusions and Outlook


2002 ◽  
Vol 67 (17) ◽  
pp. 5977-5980 ◽  
Author(s):  
Kouichi Aoyagi ◽  
Hiroyuki Nakamura ◽  
Yoshinori Yamamoto

2000 ◽  
Vol 78 (6) ◽  
pp. 838-845 ◽  
Author(s):  
Yun-Jin Hu ◽  
Romyr Dominique ◽  
Sanjoy Kumar Das ◽  
René Roy

A novel isomerization of O-allyl glycosides into prop-1-enyl glycosides was observed instead of cross-metathesis during an olefin metathesis reaction using Grubbs' ruthenium benzylidene catalyst (Cy3P)2RuCl2=CHPh (1), N-allyltritylamine, and N,N-diisopropylethylamine as necessary auxiliary reagents. In the search for a better catalytic system, it has been found that dichlorotris(triphenylphosphine)ruthenium(II), [(C6H5)3P]3RuCl2, (2) was much more efficient for the isomerization of allylic ethers. The labile prop-1-enyl group was easily hydrolyzed using HgCl2-HgO and the hemiacetals (25-32) were isolated in excellent yields (ca. 90%).Key words: allyl ether, carbohydrate, Grubbs' catalyst, isomerization, metathesis, deprotection.


1998 ◽  
Vol 63 (23) ◽  
pp. 8470-8474 ◽  
Author(s):  
Jae-Goo Shim ◽  
Hiroyuki Nakamura ◽  
Yoshinori Yamamoto

ChemInform ◽  
2004 ◽  
Vol 35 (41) ◽  
Author(s):  
Masilamani Jeganmohan ◽  
Muthian Shanmugasundaram ◽  
Chien-Hong Cheng

ChemInform ◽  
2010 ◽  
Vol 30 (29) ◽  
pp. no-no
Author(s):  
Paul Evans ◽  
Ronald Grigg ◽  
M. Imran Ramzan ◽  
Visuvanathar Sridharan ◽  
Mark York

1998 ◽  
Vol 120 (27) ◽  
pp. 6838-6839 ◽  
Author(s):  
Hiroyuki Nakamura ◽  
Masaru Sekido ◽  
Masateru Ito ◽  
Yoshinori Yamamoto

2004 ◽  
Vol 69 (12) ◽  
pp. 4053-4062 ◽  
Author(s):  
Masilamani Jeganmohan ◽  
Muthian Shanmugasundaram ◽  
Chien-Hong Cheng

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