... 22, No. 14, PP 1353 - 1354 Printed in Great Britain 0040-4039/81/141353-02$02.00/0 981 Pergamon Press Ltd. A DIRECTION CONTROLLED DIECKMANN TYPE CYCLIZATION OF HALF-THIOL DIESTERS Yasuji Yamada*, Toshihide Ishii, Masayuki Kimura, and Kunio Hosaka Tokyo College of Pharmacy, Horinouchi 1432-1 ... 4. J.B1ake,CDWillson, and H.Rapoport, J.Amer.Chem.Soc., _86,5293 (1964). 5. HJLiu, and HKLai, Tetrahedron Lett., 1193 (1979). ...