run benzaldehyde time, h yield%(c)
phenol ester
a 2-methoxy 24 94
b 3-methoxy 68 68
c 4-methoxy 24 90
d 2,3-dimethoxy 63 30 14
e 2,4-dimethoxy 14 90
f 3,4-dimethoxy 5 60
g 2,3,4-trimethoxy 1 97
h 2,4,5-trimethoxy 4 89
i 2,4,6-trimethoxy 2 89
j 3,4-methylenedioxy 24 67 8
k 4-methyl 24 (b) 28 51
l 4-chloro 24 (b) 87
m 4-nitro 12 (b) 80
(a)Unless otherwise stated, benzaldehyde 1 (5 mmol) and 31%
H20z (6.4 mmol) were stirred in the presence of HzS04 (0.1 mL) in
methanol (10 mL) under an argon atmosphere a t room tempera-
ture. (b)The reaction mixture was heated a t refluxing temperature.
(c)All the products were isolated by chromatography (Si02).
Post 483223 (https://www.thevespiary.org/talk/index.php?topic=12195.msg48322300#msg48322300)
(sYnThOmAtIc: "What, thats it?", Novel Discourse):(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/djvu.gif)
J. Org. Chem. 49, 4740-4741 (1984) (https://www.thevespiary.org/rhodium/Rhodium/pdf/acidic.h2o2.dakin-rxn.pdf)
(https://www.thevespiary.org/rhodium/Rhodium/pdf/acidic.h2o2.dakin-rxn.pdf)