38627-57-5

Usage

Chemical Properties

pink-orange powder

InChI:InChI=1/C13H8O4/c14-11-9-5-7-3-1-2-4-8(7)6-10(9)12(15)13(11,16)17/h1-6,16-17H

Upstream product

• 19916-37-1 2-Chlor-2-methylthiobenzinden-1,3-dion 
• 109410-75-5 2,2-dibromobenzoindan-1,3-dione 
• 20927-01-9 benzo[f]ninhydrin 
• 91-13-4 α,α'-dibromo-o-xylene 
• 13728-34-2 dimethyl 2,3-naphthalenedicarboxylate 
• 118416-06-1 4,9-tetrahydrobenzoindan-1,3-dione 
• 930-60-9 maleic anhydride 

Relevant academic research and scientific papers

The Hydration of 1,2,3-Indanetriones and Related Triones

A series of 5-mono- and 5,6-di-substituted 1,2,3-indanetriones, 1,2,3(2H)-phenalenetrione and 1,3-diphenyl-1,2,3-propanetrione have been shown to form 2,2-dihydroxy-1,3-dione hydrates.The rates for the uncatalysed hydrations has been measured at three temperatures and activation paramaters evaluated.The kinetic role of water and solvent isotope effects have been studied.The Hammett reaction constant, ρ, for the uncatalysed hydration of the substituted 1,2,3-indanetriones in 96.7percent (v/v) dioxane-water at 25 deg C was found to be ca. 1.05.The structure of the transition state for the hydration has been discussed and shown to involve two molecules of water, one acting as a nucleophile and the other as a general acid-base catalyst transferring protons.

A synthesis of two novel benzo[f]ninhydrin analogs: 6-methoxybenzo[f]ninhydrin and thieno[f]ninhydrin

Improved methodology for the synthesis of benzo[f]ninhydrin (1) is described. The generality of this approach is illustrated with the synthesis of two novel analogs, 6-methoxybenzo[f]ninhydrin (3) and thieno[f]ninhydrin (4).