An oxidative [3 + 2] C-H spiroannulation reaction of 2-alkenylphenols with ynamides has been developed toward the synthesis of spiro[4,5]decane derivatives. This dearomative reaction employs earth-abundant cobalt as the metal catalyst and occurs under rather mild reaction conditions (room temperature). The use of ynamides confers unique reactivity and exclusive regioselectivity. The products bearing
已经开发了2-烯基
苯酚与乙酰胺的氧化[3 + 2] CH螺环合成反应,用于合成螺[4,5]
癸烷衍
生物。该脱芳香反应使用富含稀土的
钴作为
金属催化剂,并且在相当温和的反应条件下(室温)进行。乙酰胺的使用赋予其独特的反应性和排他性区域选择性。带有全碳四元立体异构中心的产物通常以高收率构建,并观察到良好的官能团耐受性。进行了实验机理研究,并提出了可能的反应机理。