Regiocontrolled syntheses of some new sp
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Abdullah A. Al-Ahmadi; Maher F. El-Zohry
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Article
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1996
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John Wiley and Sons
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English
โ 413 KB
๐ 2 views
Indan-I-one (la), 1-tetralone (Ib), fluorenone (lc), and anthrone (Id) reacted with mercaptoacetic acid i n toluene in the presence of p-toluenesulfonic acid to give spiro[indan-1,2'-[l I, 3']oxathialan]-5'-one (2a), spiro[tetrahydro-naphthalene-l,2'-[1,3']oxathialan]-5'-one (2b), spiro[fluorene 9,2