A Novel Gallium/Samarium-mediated Coupling of Epoxides with Allyl Halides in Aqueous Media and Synthesis of Homoallylic Alcohols

2005 ◽  
Vol 34 (1) ◽  
pp. 90-91 ◽  
Author(s):  
Mukut Gohain ◽  
Dipak Prajapati
1994 ◽  
Vol 72 (5) ◽  
pp. 1181-1192 ◽  
Author(s):  
T.H. Chan ◽  
C.J. Li ◽  
M.C. Lee ◽  
Z.Y. Wei

The development of organometallic-type reactions in aqueous media is reviewed. Coupling reactions of allyl halides with carbonyl compounds mediated by zinc, or tin, or indium in aqueous media to give homoallylic alcohols are discussed. The stereochemical outcome is compared with similar reactions in organic solvents. A concise synthesis of (+)-muscarine is used to illustrate the usefulness of aqueous organometallic-type reactions in organic synthesis. The procedure to protect–deprotect hydroxy functional groups may not be necessary in these reactions. An application in the carbohydrate area is demonstrated with the synthesis of (+)-3-deoxy-D-glycero-D-galacto-nonulosonic acid (KDN). The mechanistic possibilities of organometallic-type reactions in aqueous media are outlined.


ChemInform ◽  
2011 ◽  
Vol 42 (7) ◽  
pp. no-no
Author(s):  
Li Zhang ◽  
Zhenggen Zha ◽  
Zhenlei Zhang ◽  
Yunfeng Li ◽  
Zhiyong Wang

2020 ◽  
Vol 7 (21) ◽  
pp. 3434-3438 ◽  
Author(s):  
Fu-sheng Li ◽  
Yu-qing Chen ◽  
Shuang-jie Lin ◽  
Cai-zhe Shi ◽  
Xi-yu Li ◽  
...  

This study reports a photocatalytic Barbier-type allylation of various aldehydes and ketones with allyl halides for the synthesis of homoallylic alcohols driven by dual titanium and photoredox catalysis.


2020 ◽  
Vol 31 (2) ◽  
pp. 391-395
Author(s):  
Zhen Wu ◽  
Xue-Xin Feng ◽  
Qing-Dong Wang ◽  
Xuan-Yu Liu ◽  
Weidong Rao ◽  
...  

2001 ◽  
Vol 79 (11) ◽  
pp. 1536-1540
Author(s):  
Lian-Hai Li ◽  
Tak Hang Chan

Commercial antimony metal, in aqueous 1 M H(D)Cl solution, reacts with allyl bromide and aldehydes to give the corresponding homoallylic alcohols in good yield. The reaction proceeds through the formation of allylstibine intermediates. The structures of the allylstibine intermediates are likely to be allylstibine dibromide and diallylstibine bromide.Key words: allylation reaction, aqueous organometallic reactions, homoallylic alcohols, allylstibine dibromide, diallylstibine bromide.


2013 ◽  
Author(s):  
Fernanda C. G. Barbosa ◽  
Caio F. Melo ◽  
Paulo H. Menezes ◽  
Roberta A. Oliveira

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