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2004
Organo-selenium compounds
S 0130
Selenoimidoylation of Alcohols with Selenium and Isocyanides and Its Applicato the Synthesis of Selenium-Containing Heterocycles. — Selenoimidoylation
46- 172 tion
of alcohols (II) proceeds under mild conditions using Se and isocyanides (I) to afford,
after quenching with BuI, the selenocarbonimidates (IV) in good yields. The reaction
is successfully applied to propargylic alcohols [cf. (VI)] to give oxyimidoylselenoate
intermediates which subsequently undergo cycloaddition to afford cyclic oxaselenolane derivatives like (VII). — (ASANUMA, Y.; FUJIWARA*, S.-I.; SHIN-IKE, T.;
KAMBE, N.; J. Org. Chem. 69 (2004) 14, 4845-4848; Dep. Chem., Osaka Dental
Univ., Hirakata, Osaka 573, Japan; Eng.) — Mischke
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