results in high yields of the α-benzoylated ester. Diazo transfer of the benzoylated ester utilizing p-acetoamidobenzenesulfonyl azide affords the α-diazo ester in good yield. Using this simplified procedure, it is easy to prepare gram quantities of α-diazo esters.
TiCl 4介导的酯与
苯甲酰氯的反应导致α-苯甲酰化酯的高收率。利用对乙酰乙酰
氨基苯磺酰基
叠氮化物对苯甲酰化的酯进行重氮转移,以高收率得到α-重氮酯。使用此简化程序,可以轻松制备克量的α-重氮酯。