Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1884375Generated: October 30, 2026

1-(1,3-Benzodioxol-5-yl)-1-isopropylurea → 1-Isopropyl-6,7-methylenedioxy-4-(2-chloro-4,5-methylenedioxyphenyl)-3,4-dihydro-quinazolin-2(1h)-one

https://huagongshe.com/reaction/1884375

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(1,3-Benzodioxol-5-yl)-1-isopropylureaHCID 100555—
Reactant6-ChloropiperonalHCID 140014—
Product1-Isopropyl-6,7-methylenedioxy-4-(2-chloro-4,5-methylenedioxyphenyl)-3,4-dihydro-quinazolin-2(1h)-oneHCID 1215018065%

Reaction Steps

This compound was synthesized from N-isopropyl-N-[3.4-(methylenedioxy)-phenyl]urea (410 mg) and 6-chloropiperonal (350 mg) by the procedure described in example 10 in 65% yield. 1H NMR (CDCl3): 6.86 (s, 1H), 6.77 (s, 1H), 6.48 (s, 1H), 6.40 (s, 1H), 5.95 (s, 4H), 5.66 (d, J=2.5, 1H), 5.21 (s, 1H), 4.48 (m, 1H), 1.53 (d, J=6.5, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06765006B2
Source datasetuspto-grants-2004_07
ORD IDord-0195ba5497f04fe6abe4c16bc9422980
Source noteuspto-grants-2004_07