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. Author manuscript; available in PMC: 2019 May 2.
Published in final edited form as: J Am Chem Soc. 2018 Apr 23;140(17):5805–5813. doi: 10.1021/jacs.8b02124

Table 2.

Substrate scope (4-pentenoic acids)

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a

12 h.

b

Z:E = 1:1 before purification and 7:1 after purification.

c

6% of an unknown impurity.

d

12 h, 20 mol% Pd(OAc)2, MeCN:toluene 1:1