Highly efficient [2 + 2] intramolecular cyclizations of allenynes under microwave irradiation: Construction of fused bicyclic compounds

Chemical Communications

Volumn , Issue 45, 2005, Pages 5670-5672

  Oh, Chang Ho ^a   Gupta, Arun Kumar ^a   Park, Dai In ^a   Kim, Nakjoong ^a  

^a Hanyang University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

ALKADIENE; BICYCLO COMPOUND; CARBOXYLIC ACID; PALLADIUM;

ARTICLE; CYCLIZATION; CYCLOADDITION; MICROWAVE IRRADIATION; SYNTHESIS;

EID: 28944440119     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/b508306k     Document Type: Article

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28. A mixture of allenyne 1a-j (1 mmol) and the appropriate solvent (1 mL) were placed in a well dried and screw capped test tube and subjected to programmed microwave irradiation in a domestic microwave oven for a set time (see Table 2). After cooling, the solution was concentrated, and the residue was subjected to flash column chromatography to give products 2a-j.