j. am. chem. soc. 1972 94 6190
j. am. chem. soc. 1972 94 6190, j. am. chem. soc. 1972 94 6192, j. am. chem. soc. 1969 91 5970, j. am. chem. soc. 1977 99 5946, j. am. chem. soc. 1971 93 2897, j. am. chem. soc. 121 1922 1999, j. am. chem. soc. 1994 95 559, j. am. chem. soc. 82 3359 1960, j. am. chem. soc. 95 751 1973, j. am. chem. soc. 117 5179 1995, j. am. chem. soc. 109 7968 1987, j. am. chem. soc. 2002 124, j. am. chem. soc. 1956 78 3224, j. am. chem. soc. 2004 126 444, j. am. chem. soc. 2012 73440, j. chem. soc. 1952 1094, j.am.chem.soc. 1974 94 3256, j.am.chem.soc. 2002 124:3175
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j. am. chem. soc. 1972 94 6190
j. am. chem. soc. 1972 94 6192
j. am. chem. soc. 1969 91 5970
j. am. chem. soc. 1977 99 5946
j. am. chem. soc. 1971 93 2897
j. am. chem. soc. 121 1922 1999
j. am. chem. soc. 1994 95 559
j. am. chem. soc. 82 3359 1960
j. am. chem. soc. 95 751 1973
j. am. chem. soc. 117 5179 1995
j. am. chem. soc. 109 7968 1987
j. am. chem. soc. 2002 124
j. am. chem. soc. 1956 78 3224
j. am. chem. soc. 2004 126 444
j. am. chem. soc. 2012 73440
j. chem. soc. 1952 1094
j.am.chem.soc. 1974 94 3256
j.am.chem.soc. 2002 124:3175
j. am. chem. soc. 1972 94 6190, j. am. chem. soc. 1972 94 6192, j. am. chem. soc. 1969 91 5970, j. am. chem. soc. 1977 99 5946, j. am. chem. soc. 1971 93 2897, j. am. chem. soc. 121 1922 1999, j. am. chem. soc. 1994 95 559, j. am. chem. soc. 82 3359 1960, j. am. chem. soc. 95 751 1973, j. am. chem. soc. 117 5179 1995, j. am. chem. soc. 109 7968 1987, j. am. chem. soc. 2002 124, j. am. chem. soc. 1956 78 3224, j. am. chem. soc. 2004 126 444, j. am. chem. soc. 2012 73440, j. chem. soc. 1952 1094, j.am.chem.soc. 1974 94 3256, j.am.chem.soc. 2002 124:3175