Mass spectrometry in structural and stereochemical problems. Part CCXX. Synthesis and mass spectra of 5α-cholest-8(9)- and 8(14)-en-7-ones
作者:Ian Midgley、Carl Djerassi
DOI:10.1039/p19720002771
日期:——
spectroscopic evidence, it was shown that these samples are correctly formulated, whereas those reported earlier, by others, are not. Each of these enones undergoes a characteristic reaction in the mass spectrometer, and mechanisms for both diagnostically important processes are suggested.
5α-Cholest-8(14)-en-7-one(II)的制备方法已知可生产真正的甾体Δ8 (14) -7-酮和Δ8 (9) -7-酮(I从该反应的副产物获得)。根据化学和光谱学证据,表明这些样品配方正确,而其他人先前报告的样品则不正确。这些烯酮中的每一个在质谱仪中都会经历特征性反应,并且提出了对两种诊断重要过程均起作用的机制。