00335nam a2200121Ia 4500008004100000022001400041040001100055100001900066245004500085260005600130300001700186300001000203251112s9999||||xx |||||||||||||| ||und||  a0002-7863  aCNCLSA  aCheves Walling 0aJournal of the American Chemical Society  cJuly 6, 1977bAmerican Chemical SocietyaWashington  aP. 4539-6158  bV. 99