Catalytic Availabilities of Lewis Acidic SnCl<sub>2</sub>: Ph<sub>3</sub>PAuCl-SnCl<sub>2</sub>Composite Catalyzed Successive<i>ortho</i>-Alkenylation/O-Alkenylation of Phenols Followed by Cyclization to 1-Benzopyrans
Ph3PAuCl and SnCl2, catalyzed the formation of 1-benzopyrans from phenols and phenylacetylene. The Ph3PAuCl–SnCl2 composite catalyzed reaction was presumed to proceed through the successive ortho-alkenylation and O-alkenylation of phenols with phenylacetylene followed by cyclization of the prepared ortho- and O-dialkenylated phenol derivatives. Conveniently, all reactions with Ph3PAuCl–SnCl2 composite
Kozlikovskii, Ya. B.; Chernyaev, B. V.; Litvin, A. L., Journal of Organic Chemistry USSR (English Translation), 1986, vol. 22, # 11, p. 2146 - 2149
作者:Kozlikovskii, Ya. B.、Chernyaev, B. V.、Litvin, A. L.
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KOZLIKOVSKIJ YA. B.; CHERNYAEV B. V.; LITVIN A. L., ZH. ORGAN. XIMII, 22,(1986) N 11, 2389-2394
作者:KOZLIKOVSKIJ YA. B.、 CHERNYAEV B. V.、 LITVIN A. L.
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KOZLIKOVSKIJ, YA. B.;KOSHCHIJ, V. A.;BUTOV, S. A., YKP. XIM. ZH., 53,(1987) N 6, 634-637
作者:KOZLIKOVSKIJ, YA. B.、KOSHCHIJ, V. A.、BUTOV, S. A.
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Heteroatom-Guided, Palladium-Catalyzed, Site-Selective CH Arylation of 4<i>H</i>-Chromenes: Diastereoselective Assembly of the Core Structure of Myristinin B through Dual CH Functionalization
palladium‐catalyzed direct arylation of 4H‐chromenes is reported. The CHfunctionalization is driven not only by the substituents and structure of the substrate but also by the coupling partner being used. The diastereoselectiveassembly of the corestructure of MyristininB has been achieved by using a dualCHfunctionalization strategy for regioselective direct arylation.