Quinone-imides : regiospecificity of nucleophilic attack on n-alkanesulphonyl-n'-alkanoyl 14-benzoquinone-imines.
作者:Srinivasaschari Rajappa、Sharada J. Shenoy
DOI:10.1016/s0040-4020(01)88179-5
日期:1986.1
Substrates such as () undergo regiospecific attack by azide and thiocyanate ions at the terminus of the CC-CN-CO system. In the case of addition of azide, this is proved by the detailed analysis of the 1H and 13C NMR spectra of the products () derived from the quinone-imides (). The structure of the products obtained by the addition of thiocyanate to the quinone-imides and ()() is proved by their
诸如()之类的底物在CCCN-CO系统的末端受到叠氮化物和硫氰酸根离子的区域特异性攻击。在添加叠氮化物的情况下,通过对衍生自醌-酰亚胺()的产物()的1 H和13 C NMR光谱进行详细分析,证明了这一点。通过将硫氰酸盐加到醌-酰亚胺和()()中获得的产物的结构通过它们分别容易地环化成2-氨基苯并噻唑()和()来证明。