Synthetic Route of 33100-27-5. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 33100-27-5, Name is 1,4,7,10,13-Pentaoxacyclopentadecane
Metathesis of “[Li(PyNSiMe3)(15C5)]” (15C5 = 15-crown-5 ether) with potassium tert-butoxide or rubidium 2-ethylhexoxide yields the two new amide complexes [{K(PyNSiMe3)(mu-15C5)}2] (3) and [{(Rb(mu-PyNSiMe3)(15C5)}2] (4). X-ray crystallography reveals 3 to be a ‘slipped’ centrosymmetric dimer, in which the crown ethers exhibit a bridging coordination mode via one crown oxygen from each crown to form a (KO)2 four-membered ring; the amide adopts a terminal chelating mode. In contrast, 4 is a centrosymmetric amido-bridged dimer with a transoid (RbN)2 core having additional bonding via bridging pyridyl groups; the crown ethers cap both ends of the dimer.
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Reference：
Chiral Catalysts,
Chiral catalysts – SlideShare