Research Article
Microwave-Assisted Synthesis of Isopropyl β-(3,4-Dihydroxyphenyl)-α-hydroxypropanoate
Table 5
Variance analysis of orthogonal experiment on synthesis of
-acetylamino-
-(3,4-diacetoxyphenyl)acrylic acid.
| | Source | Sum of squares | Degree of freedom | Mean square | F value | P value |
| Factor A
temperature (°C) | 13.9 | 2 | 6.95 | 0.63 | 0.613 | Factor B
time (min) | 41.98 | 2 | 20.99 | 1.90 | 0.344 | Factor C
MW power (W) | 71.27 | 2 | 35.63 | 3.23 | 0.236 | | Error | 22.04 | 2 | 11.02 | | |
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