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. 2015 Aug 5;146(10):1673–1679. doi: 10.1007/s00706-015-1539-z

Table 1.

The condensation reaction of 1 with 2-haloesters 2-4 Inline graphic

No. X R1 Procedurea Time/h Yield of 5–7/% M.p. of 5–7/°C
2 Cl H A
B		 8
24		 50
Trace		 89–90b
3 Br CH3 A
B		 1
1		 68
47		 75–76
4 Br C2H5 A
B		 3
2		 65
40		 77–78

aProcedure A: MeOH, MeONa, the boiling point; procedure B: EtOH, the boiling point

bRef. [9] 102–103 °C