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provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
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isa:158137903
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prov:value
In each case Y was an electron donating heteroatomic (that is containing an atom other than H and C) group such as PPh2, SMe or OMe; and Z was also a heteroatomic (that is containing a compound other than H or C) group such as PPh2, SEt, C5H4N, NMe2, OMe or SMe.
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n4:com
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isa:158137903