Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 717667Generated: October 27, 2026

4-Bromobenzaldehyde → 4-(4-Oxo-4-(3,4,5-trimethoxyphenyl)but-2-en-2-yl)benzaldehyde

https://huagongshe.com/reaction/717667

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-BromobenzaldehydeHCID 70741—
Reactant5-Hydroxymethylthiophene-2-boronic acidHCID 4374265—
Reactant3-Bromo-1-(3,4,5-trimethoxyphenyl)but-2-en-1-oneHCID 86660614—
Product4-(4-Oxo-4-(3,4,5-trimethoxyphenyl)but-2-en-2-yl)benzaldehydeHCID 8666061581%

Reaction Steps

When the product of Step A and 4-carbaldehyde-boronic acid were substituted for 5-(hydroxymethyl)thiophen-2-ylboronic acid and 4-bromobenzaldehyde, respectively, in Example 22, Step A, the similar process afforded the title compound in 81% yield, as creamy gum. 1H-NMR (CDCl3) 10.05 (s, 1H); 7.92 (d, 2H, J=8.25 Hz); 7.68 (d, 2H, J=8.28 Hz); 7.23 (s, 2H); 7.10 (s, 1H); 3.91 (s, 9H); 2.55 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09193716B2
Source datasetuspto-grants-2015_11
ORD IDord-6e653ab579d0478389b2e31e57c477d0
Source noteuspto-grants-2015_11