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New reactions of carbon suboxide with alkynes
Author(s) -
Casu Laura,
Bonsignore Leonardo,
Cottiglia Filippo,
Loy Giuseppe,
Maccioni Elias
Publication year - 2003
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570400219
Subject(s) - chemistry , bicyclic molecule , suboxide , carbon fibers , molar ratio , medicinal chemistry , organic chemistry , catalysis , oxygen , materials science , composite number , composite material
Abstract Synthesis of 3,4,7,8‐tetraalkyl‐2‐oxa‐bicyclo[4.2.0]octa‐1(6),3,7‐trien‐5‐ones( 4a‐d ),4,5,7,8‐tetraalkyl‐2‐oxa‐bicyclo[4.2.0]octa‐1(6),4,7‐trien‐3‐ones ( 6a‐d ) and 3,4,7,8‐tetraalkyl‐2 H ,5 H ‐cyclobuta[ b ]pyrano‐[2,3‐ d ]pyran‐2,5‐diones ( 7a‐d ) from the reaction of alkynes ( la‐d ) with carbon suboxide ( 2 ) in various molar ratios is described.