... Sythesis of Aminomethyl Crown Ethers Hirokazu Maeda, Takashi Kikui, Yohji Nakatsuji, and Mitsuo Okahara* Department of Applied Chemistry, Faculty of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka, Japan 565 Received March 18. ... 5168 J. Org. Chem., Vol. ...