Transformation of a carbonyl functional group into thiocarbonyl has been an important
interest to synthetic organic chemists for many years. Two reagents, phosphorus …

Thioxo—3-allyl-4-thiazolidinone 1a reacts with Lawesson's reagent (LR, 2) to give the
ethylenic product 5 through a coupling reaction along with the dithioxo compound 6 …

The synthesis of a novel quinone fused phosphorus heterocycle, 2‐chloro‐3, 3‐
disubstituents‐3, 4‐dihydro‐2H‐naphtho [2, 3‐e][1, 4, 2] oxazaphosphinane‐5, 10‐dione 2 …

Abstract The reaction of 1, 3‐diphenyl‐2‐(phenylimino)‐3‐(ylidenemethyl‐acetate)‐1‐
propanone (5) with trisdialkylaminophosphines (6a, b) in refluxing toluene afforded the new …

The synthesis of a novel quinone fused phosphorus heterocycle, 2-phenoxy-3, 4-dihydro-2H-
naphtho [2, 3-e][1, 4, 2] oxazaphosphinane-5, 10-dione-2-oxides (3a-g), is described for the …

Lawesson's reagent reacts with xanthen-9-ylidenemalono-nitrile 3 to give adducts 5a, 6a
and 7, respectively. In case of the reaction of fluoren-9-ylidenemalononitrile 4 with j [, only 3 …

Phenoxy-4H-spiro {naphtho [2, 3-e][1, 4, 2] oxazaphosphinane-5, 10-dione, 1′-
cyclohexane} 2-oxide (C22H20NO5P) was synthesized by the Mannich-type reaction of 2 …

The rich chemistry of molecules exhibiting a quinonoid structure has attracted the interest of
a large scientific community for decades owing to their implications in organic and physical …

Supporting information for this article is available on the WWW under http://www.
angewandte. org or from the author. template (self-pair synthesis) with reasonable efficiency …