Palladium(II)-catalyzed oxidative transformation of allylic alcohols and vinyl ethers into 2-alkoxytetrahydrofurans: Catechol as an activator of catalyst

Organic Letters

Volumn 7, Issue 25, 2005, Pages 5689-5692

  Minami, Kimi ^a   Kawamura, Yasufumi ^a   Koga, Koichi ^a   Hosokawa, Takahiro ^a  

^a KOCHI UNIVERSITY OF TECHNOLOGY   (Japan)

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EID: 29444433068     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol052377l     Document Type: Article

References (30)

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21. The use of other solvents such as 1,2-dichloromethane or ethyl acetate under the conditions shown in Scheme 2 (Pd/Cu/4 = 1/1/2) resulted in poor yields (∼30%) of 3a. When ethyl orthoformate, which acts as a scavenger of water, was employed, the yield of 3a was only 42%. Note that in all these cases, the absence of 4 further decreased the yields of 3a.
22. The details are given in the Supporting Information.
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