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ChemInform Abstract: Photocyclodehydrogenation of 1,2-Diarylisoindolinium Salts.

โœ Scribed by D. A. OPARIN; A. A. SOLODUNOV; A. N. ARTSUKEVICH; I. I. STEPURO; N. N. KRUK

Book ID
112023783
Publisher
John Wiley and Sons
Year
2010
Weight
26 KB
Volume
26
Category
Article
ISSN
0931-7597

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Novel Polar Cycloaddition of 1,2-Thiazinylium Salt. -Treatment of the thiazine 5-oxide (I) according to A) affords a thiazinylium tetrafluoroborate which undergoes cycloaddition with the butadienes (II) and (V) to give heterocyclic adducts. Ring transformation of cycloadduct (IIIa) yields the pyrrol