dimethoxy-3,3,N-phenyl butanamide 在
crystals 作用下,
以
异丙醚 为溶剂,
60.0~195.0 ℃
、1.07 MPa
条件下,
反应 1.0h,
以to obtain 226 g of 3-methoxy-crotonanilide in the form of white crystals melting at 111--112° C.的产率得到3-methoxycrotonanilide
This is the first report of a simple and general method for acetalization of aldehydes via an α-chymotrypsin-induced reaction under mild conditions. A broad range of aromatic and heteroaromatic aldehydes have been acetalized under neutral conditions in good yields using a catalytic amount of chymotrypsin.