Gold(I)-Catalyzed Synthesis of Optically Active 1,4-Oxazepan-7-ones
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https://figshare.com/articles/dataset/Gold_I_Catalyzed_Synthesis_of_Optically_Active_1_4_Oxazepan_7_ones/2263735
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Optically active seven-membered lactones, dimethyleneoxazepanones, were readily prepared in good yields from chiral β-(N-propargylic)amino-α-methylene carboxylic acid tert-butyl esters in the presence of catalytic amounts of Ph3PAuCl and Cu(OTf)2. A smooth 7-exo-dig cyclization was observed.
创建时间：
2016-02-17
