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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1965403Generated: October 30, 2026

Bromodiphenylmethane → 1-(diphenylmethyl)-4,6-dimethoxy-1H-indole-2,3-dione

https://huagongshe.com/reaction/1965403

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromodiphenylmethaneHCID 236603—
Reactant2,3-dihydro-6H-[1,4]dioxino[2,3-f]indole-7,8-dioneHCID 2029802—
Reactant2-(Bromomethyl)-5-(trifluoromethyl)furanHCID 2794605—
Reactant4,6-dimethoxy-2,3-dihydro-1H-indole-2,3-dioneHCID 11557522—
Product1-(diphenylmethyl)-4,6-dimethoxy-1H-indole-2,3-dioneHCID 67357052—

Reaction Steps

Following the procedure as described in PREPARATION 26A and making non-critical variations using 4,6-dimethoxy-1H-indole-2,3-dione to replace 2,3-dihydro-6H-[1,4]dioxino[2,3-f]indole-7,8-dione, and bromodiphenylmethane to replace 2-(bromomethyl)-5-(trifluoromethyl)furan, 1-(diphenylmethyl)-4,6-dimethoxy-1H-indole-2,3-dione was obtained (90%): 1H NMR (300 MHz, DMSO-d6) δ7.49-7.19 (m, 10H), 6.72 (s, 1H), 6.21 (d, J=1.5 Hz, 1H), 5.87 (d, J=1.5 Hz, 1H), 3.86 (s, 3H), 3.70 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08415370B2
Source datasetuspto-grants-2013_04
ORD IDord-1bcb0233d72f431fa02ebf387e73d9b1
Source noteuspto-grants-2013_04