A New Reagent for the Generation of Tetramethylcyclobutadiene Under Thermal or Photochemical Conditions-Reference-Cited by-同舟云学术

A New Reagent for the Generation of Tetramethylcyclobutadiene Under Thermal or Photochemical Conditions

Published:1986-11 Issue:13 Volume:16 Page:1627-1634
ISSN:0039-7911
Container-title:Synthetic Communications
language:en
Short-container-title:Synthetic Communications

Author:

Pitt Ian G.,Russell Richard A.,Warrener Ronald N.

Publisher

Informa UK Limited

Subject

Organic Chemistry

Link

http://www.tandfonline.com/doi/pdf/10.1080/00397918608056420

Reference5 articles.

1. This compound readily undergoes thermal isomerisation (t0.5= 44 min., 30°C) to the aromatic phthalimide, but can be isolated by centrifugal layer chromatography (silica, 5% ethyl acetate, hexane).1H NMR (CDCl3) δ 1.42, s, 6H, CH3; 1.62, s, 6H,CH3; 2.91, s, 3H, NCH3)

2. These assignments are not firm, being assigned on the basis of chemical shift data alone

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