Pheromone study on acarid mites. Part IX. Syntheses of alarm pheromone analogues of the mold mite, Tyrophagus putrescentiae, and their biological activities.
摘要:
针对霉菌螨(Tyrophagus putrescentiae),3, 7-二甲基-(Z)-2-辛烯酸甲酯(II)是除了天然信息素(奈尔酸甲酯 I)外,作为警报信息素最活跃的化合物,其活性与 I 相当(1-10ppm)。为了阐明诱导警报信息素活性的结构要求,制备了16个 I 的类似物,通过改造 II 的结构。为制备3-甲基和3-乙基-(Z)-2-烯酸甲酯,采用了乙氧基或甲氧基碳酰基甲烯三苯基膦与2-烷酮或3-烷酮的威蒂格反应。与2-烷酮的反应产生了约40%的(Z)-2-烯酸酯和约60%的(E)-2-烯酸酯,平均产率为60%。与3-烷酮的反应则得到了56%的(Z)-2-烯酸酯和44%的(E)-2-烯酸酯。在14种(Z)-2-烯酸甲酯化合物中展示了警报信息素活性。研究表明,分子中存在(Z)-烯丙基初级醇酸甲酯基团是诱导信息素活性的关键,且不需要非环状单萜碳骨架。
Ely, R. J.; Morken, J. P., Journal of the American Chemical Society, 2010, vol. 132, p. 2534 - 2535
作者:Ely, R. J.、Morken, J. P.
DOI:——
日期:——
STEREOSELECTIVE NICKEL-CATALYZED 1,4-HYDROBORATION OF 1,3-DIENES
作者:Ely, Robert J.、Morken, James P.
DOI:10.15227/orgsyn.088.0342
日期:——
Highly stereoselective and general synthesis of (z)-3-methyl-2-alken-1-ols via palladium-catalyzed cross coupling of (z)-3-iodo-2-buten-1-ol with organozincs and other organometals
作者:Ei-ichi Negishi、Mehmet Ay、Yuri V. Gulevich、Yumiki Noda
DOI:10.1016/s0040-4039(00)60312-x
日期:1993.2
The reaction of Zn-protected (Z)-3-iodo-2-buten-1-ol with organozincs in the presence of 1-5 mol % of a Pd complex, e.g., Pd(PPh3)4 or Cl2Pd(pPh3)2 and n-BuLi (2 equiv), in DMF provides a highly stereoselective (greater-than-or-equal-to 96%), general, and high-yielding procedure for preparing (Z)-3-methyl-2-alken-1-ols, while the use of organometals containing B and Sn along with a Pd catalyst or organocoppers alone gives the desired products in moderate to good yields.
CONN, R. S. E.;KARRAS, M.;SNIDER, B. B., ISRAEL J. CHEM., 1984, 24, N 2, 108-112