nucleophiles the podand related to 15-crown-5 was prepared as well. The reactions of the obtained podands with CoCl2 result in the macrocyclic ring closure giving the corresponding crown ethers with the incorporated cobalt bis(dicarbollide) fragment K[8,8′-μ-S(OCH2CH2OCH2CH2)2-3,3′-Co(1,2-C2B9H9)2] and K[8,8′-μ-o-C6H4(OCH2CH2OCH2CH2S)2-3,3′-Co(1,2-C2B9H9)2]. The structure of Na[8,8′-μ-o-C6H4(OCH2CH2OCH2CH2S)2-3
用的1,4-
二恶烷衍
生物的开环反应获得与
18-冠-6一系列podands的(
冠醚的无环类似物)巢-carborane [10-O(CH 2 CH 2)2 O- 7,8--C 2乙9 ħ 11 ]与1,2-小号,小号' -和ö,ö '-dinucleophiles(1,2-二巯基
乙烷,1,2-二巯基苯,1,2-二巯基邻-carborane ,
1,2-二羟基邻位-碳
硼烷)。通过
二恶烷衍
生物与含
硫亲核试剂的逐步开环反应,还制备了与
15-冠-5有关的豆荚。所得荚果与CoCl 2的反应导致大环闭环,得到相应的
冠醚,并带有掺入的
钴双(
双糖脂)片段K [8,8'-μ-S(OCH 2 CH 2 OCH 2 CH 2)2 -3,3'-Co(1,2-C 2 B 9 H 9)2 ]和K [8,8'-μ- o -C 6 H 4(OCH 2 CH 2 OCH 2
CH2 S)2 -3,3'-Co(1,2-C 2 B