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Journal of Chemistry
/
2016
/
Article
/
Tab 2
/
Research Article
Reaction of Acyl Chlorides with
In Situ
Formed Zinc Selenolates: Synthesis of Selenoesters
versus
Ring-Opening Reaction of Tetrahydrofuran
Table 2
Preliminary results (see Scheme
4
).
Entry
mol% of acid
Ratios by
1
H-NMR
2a
5a
6a
1
60
1 h
3 h
rt
26
48
26
2
30
1 h
3 h
rt
38
34
28
3
60
1 h
1 h 30′
Reflux
36
38
26
4
30
1 h
1 h 30′
Reflux
32
42
26
5
30
6 h
1 h 30′
Reflux
42
38
20