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7-Bromo-4b-methyl-7,8-dihydro-4bH-9-thia-8a-aza-fluorene 9,9-dioxide.

ABSTRACT: The title compound, C(12)H(12)BrNO(2)S, was isolated after direct irradiation (h? 350?nm, hexa-ne) of a mixture of stereoisomeric sulfonamides containing a vicinal dibromide and a conjugated diene. This product is one of a group of substrates that has contributed to our understanding of the photoreactivity patterns of non-bridged sulfonamides. The crystal structure was determined from a non-merohedrally twinned data set, where the twin law corresponded to a 180° rotation about the a* axis. The minor twin component refined to a value of 0.176?(3). The conformation of the mol-ecule is planar at one end, as the benzene ring and the adjacent fused five-membered ring are coplanar, and U-shaped at the other end, where the five-membered ring is fused to the heterocyclic six-membered ring containing an allyl bromide group.

SUBMITTER: Gallucci JC 

PROVIDER: S-EPMC2961827 | biostudies-other | 2008

REPOSITORIES: biostudies-other

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7-Bromo-4b-methyl-7,8-dihydro-4bH-9-thia-8a-aza-fluorene 9,9-dioxide.

Gallucci Judith C JC   Dura Robert D RD   Paquette Leo A LA  

Acta crystallographica. Section E, Structure reports online 20080619 Pt 7

The title compound, C(12)H(12)BrNO(2)S, was isolated after direct irradiation (hν 350 nm, hexa-ne) of a mixture of stereoisomeric sulfonamides containing a vicinal dibromide and a conjugated diene. This product is one of a group of substrates that has contributed to our understanding of the photoreactivity patterns of non-bridged sulfonamides. The crystal structure was determined from a non-merohedrally twinned data set, where the twin law corresponded to a 180° rotation about the a* axis. The m  ...[more]

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