dmap结构式,DCC结构式

bzo o 3) tba, thf-h2o 4) cl3ccocl dmap, py (74% yield) otbs o h
的缩合剂一般需要加入酰化催化剂或活化剂,如 4n,n-二甲基吡啶(dmap)
5mmol,127mg)和dmap(0.
n = 3, l 1 = n-methyl-4,4'-bipyridinium (meq ) and l 2 = dmap
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