Synthesis of several bis(4‐arylthiosemicarbazido‐ 1, bis(2‐arylamino‐1,3,4‐thiadiazol‐5‐yl)‐ 5 and bis(4‐aryl‐1,2,4‐triazolin‐3‐thione‐5‐yl)‐ 2 pentanes is described. Sulphides 3 and sulphones 4 are also prepared from 2 by alkylation and subsequent oxidation with hydrogen peroxide respectively.
Extraction of commercial essential oil from aromatic crops results in the accumulation of huge spent aromatic waste which can be used for production of platform chemicals such as xylose, CMF and HMF.
Aegle marmelos is a plant species native to India. Commercially available food products such as jam, jelly, candy, squash etc. are prepared from ripe fruit pulp of A. marmelos. Ripe fruit processing accounts for 60% of whole fruit mass while 40% remains unutilized and generates waste (hard shell, pomace, fiber and seeds) on a massive scale which do not have high value applications. A new flavone 3,5,7-trihydroxy-2-(4'-hydroxy-3'-isopentyloxyphenyl-4H-chromen-4-one (5) in addition to the known compounds 1-4, has been isolated from seeds of A. marmelos. Also, compound 7-(3'-methylbut-2'-enyloxy)-2H-chromen-2-one (2) has been isolated for the first time from A. marmelos. The structure of compounds 1-5 was determined by spectral analysis (UV, IR, NMR, etc.). Additionally, the non-edible oil obtained from seeds was investigated for waste to wealth recovery of 6-O-ascorbyl esters in high regioselectivity via one step semi-synthetic approach in the presence of ascorbic acid and HSO at ambient temperature.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.