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Oxidative cyclization of halobenzophenone oximes to 4,2′-iodonia-3-phenyl-1,2-benzisoxazole salts

✍ Scribed by T. P. Tolstaya; L. D. Egorova; I. N. Lisichkina


Book ID
112346604
Publisher
Springer US
Year
1985
Tongue
English
Weight
493 KB
Volume
21
Category
Article
ISSN
0009-3122

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o-Ethynylbenzyl phenyl selenides regioselectively reacted with trifluoromethanesulfonic acid to afford the (Z)-1-methylidene-2-phenyl-1,3-dihydro-1H-benzo[c]selenophenium salts as the major products during the 5-exo-dig mode cyclization in good yields together with minor E isomers. The structure of