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7559781 
Journal Article 
Carbazole-1,2-quinodimethane: Generation and reactivity 
Tome, AC; Enes, RF; Cavaleiro, JAS; Martarello, L; Kirsch, G; , 
1997 
1 
Synlett
ISSN: 0936-5214
EISSN: 1437-2096 
GEORG THIEME VERLAG 
STUTTGART 
1444-1446 
WOS:000071627400041 
Carbazole-1,2-quinodimethane was generated by thermal extrusion of sulfur dioxide from a dihydrothieno[3,4-a]carbazole-S,S-dioxide. This novel ortho-quinodimethane was trapped in situ in Diels-Alder reactions to give new carbazole derivatives.