Organic Qualitative Analysis. I

Essential Oils and Related Products

“…For the qualitative analysis of primary and secondary alcohols, Momose and Torigoe (81) recommended the preparation of the 3,6-dinitrophthalates by means of the anhydride. Redcliffe (113) proposed the use of .V-propionyldiphenylpentimine for the identification of primary alcohols and mercaptans; the reagent appears better suited for mercaptans than for alcohols.…”

Synthesis of 3,6-Diaminophthalimides for Ureidophthalimide-Based Foldamers

“…In this paper, we present a general methodology for the synthesis of 3,6-diaminophthalimide building blocks employing 3,6-bis(acetylamino)phthalic anhydride ( 5 ) as a starting material. The latter is obtained via the palladium-mediated catalytic reduction of 3,6-dinitrophthalic acid ( 4 ), followed by exposure of the unstable diaminophthalic acid to acetic anhydride (Scheme ). Subsequent reaction of 5 with primary amines in dioxane at reflux affords a variety of 3,6-bis(acetylamino)phthalimides ( 6a − h ) in good to almost quantitative yields (Table ).…”

Facile synthesis of a chiral polymeric helix; folding by intramolecular hydrogen bondingElectronic Supplementary Information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b3/b312407j/

“…Backbone building block, 3,6-dinitrophthalic anhydride (1), was synthesized by nitration of 1,5-dinitronaphthalene and subsequent oxidation, 10 followed by ring closure of the obtained diacid using acetic anhydride. 11 Anhydride 1 was reacted with 1.6 equiv.…”