Phase transfer catalytical synthesis of N,N'-bis(3,5-dimethylpyrazolyl) alkanes
ZHANG LIANGFU;JIANG QIONGZHONG;NIE FULI;HAO TAO;LI GUANGNIAN;SHUAI FUHUA
Chin. J. Org. Chem. . 1991, (3): 283 -287 .