STEREOSELECTIVE ADDITION OF CARBOXYLIC-ACIDS TO ELECTRON-DEFICIENT ACETYLENES CATALYZED BY THE PDMO3S4 CUBANE-TYPE CLUSTER

zThe mixed-metal sulfide cubane-type cluster complex [PdMo3S4(tacn)(3)Cl][PF6](3) (1; tacn = 1,4,7-triazacyclononane) was found to be a highly efficient and selective catalyst for the addition of carboxylic acids to acetylenes with electron-withdrawing groups. The corresponding trans addition produc...

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Bibliographic Details
Published inTetrahedron letters Vol. 36; no. 31; pp. 5585 - 5588
Main Authors WAKABAYASHI, T, ISHII, Y, MURATA, T, MIZOBE, Y, HIDAI, M
Format Journal Article
LanguageEnglish
Published OXFORD Elsevier 31.07.1995
Subjects
Chemistry
Chemistry, Organic
Physical Sciences
Science & Technology
ENOL ESTERS
CHEMISTRY
ALKYNOIC ACIDS
CYCLIZATION
COMPLEXES
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Summary:zThe mixed-metal sulfide cubane-type cluster complex [PdMo3S4(tacn)(3)Cl][PF6](3) (1; tacn = 1,4,7-triazacyclononane) was found to be a highly efficient and selective catalyst for the addition of carboxylic acids to acetylenes with electron-withdrawing groups. The corresponding trans addition products were exclusively obtained in good yields under mild reaction conditions in the presence of a catalytic amount of triethylamine.
ISSN:0040-4039
DOI:10.1016/00404-0399(50)1067r-