SYNTHESIS OF 3,7-DISUBSTITUTED 9-THIATRICYCLO[3.3.1.0(3,7)]NONANE-1,5-DITHIOL DERIVATIVES AND CRYSTAL-STRUCTURE OF TETRAMETHYL NANTHRO[9,10-A]PENTALENE-1,2,4,4A-TETRACARBOXYLATE

Citation
W. Dolling et al., SYNTHESIS OF 3,7-DISUBSTITUTED 9-THIATRICYCLO[3.3.1.0(3,7)]NONANE-1,5-DITHIOL DERIVATIVES AND CRYSTAL-STRUCTURE OF TETRAMETHYL NANTHRO[9,10-A]PENTALENE-1,2,4,4A-TETRACARBOXYLATE, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, (11), 1998, pp. 2647-2650
Citations number
21
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
1434193X
Issue
11
Year of publication
1998
Pages
2647 - 2650
Database
ISI
SICI code
1434-193X(1998):11<2647:SO39>2.0.ZU;2-E
Abstract
A simple and efficient approach to the 9-thiatricyclo[3.3.1.0(3,7)]non ane ring system (5) has been found by treating cis-bicyclo[3.3.0]octan e-3,7-diones (1) with Lawesson's reagent or phosphorus pentasulfide. W hen dione 1 is treated with Lawesson's reagent tetramethyl ydrophenant hro[9,10-a]pentalene-1,2,4,4a-tetracarb oxylate (6) is obtained as a b y-product as shown by X-ray structural analysis.