In the title compound, C(11)H(9)NO(3), the dihedral angle between the meth-oxy-benzene and 1H-pyrrole-2,5-dione rings is 75.60 (10)°. The C atom of the meth-oxy group is close to coplanar with its attached ring [deviation = 0.208 (2) Å]. In the crystal, weak aromatic π-π stacking [centroid-centroid separation = 3.8563 (13) Å] occurs between inversion-related pairs of benzene rings.

Imagine the following scenario. Stuck in traffic, you have your digital agent make contact with the secretary at the Rehabilitation Center via your wireless palmtop. You are immediately provided with a verbal listing of your daily schedule. It is clear that you will have a tight timetable, and already anticipate a hectic day filled with clinical rounds, research meetings and an afternoon lectur...

Corn was an important crop for people who lived in the area that became Illinois before the Europeans first set foot here; it was the staple food crop of the people who lived in the Cahokia area some 1,000 years ago. It was a crop of choice when Europeans settled and started to farm in Illinois, and acreage in the state first reached 10 million acres in 1895. Acreage over the past 100 years has...

A new butenolide derivative (1), along with three known compounds (2-4) were isolated from the MeOH extract of brown alga Sargassum micracanthum. The structures 1 to 4 determined by analyses 1D and 2D NMR mass spectroscopic data. identified as (5 E,10 Z)-6,10,14-trimethylpentadeca-5,10-dien-2,12-dione (2), E,9 E)-6,10,14-trimethylpentadeca-5,9-dien-2,12-dione (3), (-)-loliolide (4) comparing th...

Aminoanthraquinones were successfully synthesized via two reaction steps. 1,4-Dihydroxyanthraquinone (1) was first subjected to methylation, reduction and acylation to give an excellent yield of anthracene-1,4-dione (3), 1,4-dimethoxyanthracene-9,10-dione (5) and 9,10-dioxo-9,10-dihydroanthracene-1,4-diyl diacetate (7). Treatment of 1, 3, 5 and 7 with BuNH2 in the presence of PhI(OAc)2 as catal...