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. 2020 Apr 30;11(25):6500–6509. doi: 10.1039/d0sc01349h

Table 2. Assessment of forming 3a in 2-MeTHF and Gly when the order of addition of reagents is 2a then 1a a .

Inline graphic
Entry Solvent Time Yield [%]
1 Gly 10 s 32
2 30 s 3
3 2-MeTHF 1 min 70
4 2 min 62
5 5 min 42
6 10 min 13

aReactions performed in air at ambient temperature using 1 g of solvent and 1 mmol of 1a. Lithium amide 2a was added as a 1 M soln. in 2-MeTHF and stirred for the specified time before addition of 1a. Reactions stirred for another 20 s, then quenched with sat. Rochelle's salt soln. (5 mL). Isolated yields are given.