ernani了 R-C-OH+CH2-N≡N 重氮甲烷 R-C-0+CH3-N≡N R-C-OCH3 NOrganic Chemistry Organic Chemistry Xiamen Xiamen University University Mechanism Mechanism + N 2 R C O H O 重氮甲烷













R C O − O + − CH 2 N N

















+ CH 3 N N +





























+



























R C OCH 3 O