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Highly regioselective α-alkylation of γ-acetoxy-α, β-enoates by reduction–alkylation with lithium dibutylcuprate–alkyl halides: application to the synthesis of spirovetivanes
作者:Toshiro Ibuka、Takeshi Aoyagi、Fumio Yoneda
DOI:10.1039/c39850001452
日期:——
Reaction of γ-acetoxy-α, β-enoates with lithium dibutylcuprate followed by alkyl halides results in the predominant or exclusive formation of α-alkyl-β, γ-enoates in high yields under mild conditions; a synthetic route to (±)-α-vetispirene is also presented.
γ-乙酰氧基-α - β-烯酸酯与二丁基铜酸锂反应,然后与烷基卤反应,导致在温和条件下以高收率主要或独家形成α-烷基-β-γ-烯酸酯。还提出了合成(±)-α- vetispirene的途径。
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Lewis acid mediated reactions of organocopper reagents. Entrainment in the conjugate addition to .alpha.,.beta.-unsaturated ketones, esters, and acids via the RCu.cntdot.BF3 system
作者:Yoshinori Yamamoto、Sinichi Yamamoto、Hidetaka Yatagai、Yuji Ishihara、Kazuhiro Maruyama
DOI:10.1021/jo00340a026
日期:1982.1
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Ibuka, Toshiro; Aoyagi, Takeshi; Yamamoto, Yoshinori, Chemical and pharmaceutical bulletin, 1986, vol. 34, # 6, p. 2417 - 2427
作者:Ibuka, Toshiro、Aoyagi, Takeshi、Yamamoto, Yoshinori
DOI:——
日期:——
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Ibuka, Toshiro; Minakata, Hiroyuki, Synthetic Communications, 1980, vol. 10, # 2, p. 119 - 126
作者:Ibuka, Toshiro、Minakata, Hiroyuki
DOI:——
日期:——
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YAMAMOTO, YOSHINORI;YAMAMOTO, SINICHI;YATAGAI, HIDETAKA;ISHIHARA, YUJI;MA+, J. ORG. CHEM., 1982, 47, N 1, 119-126
作者:YAMAMOTO, YOSHINORI、YAMAMOTO, SINICHI、YATAGAI, HIDETAKA、ISHIHARA, YUJI、MA+
DOI:——
日期:——