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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Reactivity of an NN , NN ‐Chelated Germylene Toward Substituted Alkynes, Alkenes, and Allenes
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Reactivity of an NN , NN ‐Chelated Germylene Toward Substituted Alkynes, Alkenes, and Allenes

机译:n, n, n·n-chelated常规的反应性朝向取代的炔烃,烯烃和allenes

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摘要

> Treatment of N , N ‐chelated germylene [( i Pr) 2 NB(N‐2,6‐Me 2 C 6 H 3 ) 2 ]Ge ( 1 ) with ferrocenyl alkynes containing carbonyl functionalities, FcC≡CC(O) R , resulted in [2+2+2] cyclization and formation of the respective ferrocenylated 3‐Fc‐4‐C(O) R ‐1,2‐digermacyclobut‐3‐enes 2 – 4 [ R = Me ( 2 ), OEt ( 3 ) and NMe 2 ( 4 )] bearing intact carbonyl substituents. In contrast, the reaction between 1 and PhC(O)C≡CC(O)Ph led to activation of both C≡C and C=O bonds producing bicyclic compound containing two five‐membered 1‐germa‐2‐oxacyclopent‐3‐ene rings sharing one C–C bond, 4,8‐diphenyl‐3,7‐dioxa‐2,6‐digermabicyclo[3.3.0]octa‐4,8‐diene ( 5 ). With N ‐methylmaleimide containing an analogous C(O)CH=CHC(O) fragment, germylene 1 reacted under [2+2+2] cyclization involving the C=C double bond, producing 1,2‐digermacyclobutane 6 with unchanged carbonyl moieties. Finally, 1 selectively added to the terminal double bond in allenes CH 2 =C=C RR ′ giving rise to 3‐(=C RR ′)‐1,2‐digermacyclobutanes [ R/R ′ = Me/Me ( 7 ), H/OMe ( 8 )] bearing an exo ‐C=C double bond. All compounds were characterized by
机译: >治疗 n , n - 丁烯烯[( i pr) 2 < / sub> nb(n-2,6-me 2 c 6 h 3 2 ] ge(含有羰基官能团的二茂铁alkynes,FcC 1cc(O) R 的含二茂胶醇alkyne,导致[2 + 2 + 2]环化和形成相应的铁烯烯化化3-Fc -4-C(O) R -1,2- DIGMACYCLOBUT-3-ENES 2 - 4 [ R = me( 2 ),OET( 3 )和NME 2 ( 4 )轴承轴承完整的羰基取代基。相反, 1 / B>和PHC(O)C 1CC(O)pH之间的反应导致了C 1 C和C = O键的活化,其产生含有两个五元1- rema的双环化合物-2-氧化萘葡聚糖-3-eNE环共用一个C-C键,4,8-二苯基-3,7-DIOxa-2,6- DigerMabicalclo [3.3.0]八锡-4,8-​​二烯( 5 )。用含有类似C(O)CH = CHC(O)片段的甲基马来酰亚胺,在[2 + 2 + 2]环化下反应涉及C = C的环化双键,产生1,2- DIGMACYCLOBUTANE 6 ,具有不变的羰基部分。最后, 1 在亚环烯CH 2 = c = c = c = c = c = c = c = c = c = c - (= c < i> rr ')-1,2- digmacyclobutanes [ r / r '= me / me( 7 ),h / ome( 8 )]轴承轴承 exo -c = c双键。所有化合物的特征在于

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  • 作者单位

    Department of General and Inorganic ChemistryUniversity of PardubiceStudentská 573 532 10 Pardubice Czech Republic;

    Department of General and Inorganic ChemistryUniversity of PardubiceStudentská 573 532 10 Pardubice Czech Republic;

    Department of General and Inorganic ChemistryUniversity of PardubiceStudentská 573 532 10 Pardubice Czech Republic;

    Department of Inorganic ChemistryCharles UniversityHlavova 2030 128 40 Prague Czech Republic;

    Department of Inorganic ChemistryCharles UniversityHlavova 2030 128 40 Prague Czech Republic;

    Department of General and Inorganic ChemistryUniversity of PardubiceStudentská 573 532 10 Pardubice Czech Republic;

    Department of General and Inorganic ChemistryUniversity of PardubiceStudentská 573 532 10 Pardubice Czech Republic;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

    Germylenes; Cyclization; Heterocycles; Alkynes; Allenes;

    机译:常规;环化;杂环;alkynes;艾伦斯;

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