Search results
Results from the WOW.Com Content Network
Resorcinol (or resorcin) is a phenolic compound. It is an organic compound with the formula C 6 H 4 (OH) 2. It is one of three isomeric benzenediols, the 1,3-isomer (or meta-isomer). Resorcinol crystallizes from benzene as colorless needles that are readily soluble in water, alcohol, and ether, but insoluble in chloroform and carbon disulfide. [6]
This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
There are three structural isomers: 1,2-dihydroxybenzene (the ortho isomer) is commonly known as catechol, 1,3-dihydroxybenzene (the meta isomer) is commonly known as resorcinol, and 1,4-dihydroxybenzene (the para isomer) is commonly known as hydroquinone. [1]
1,3-Cyclohexanedione is produced by semi-hydrogenation of resorcinol: [3] [4] C 6 H 4 (OH) 2 + H 2 → C 6 H 8 O 2. 1,3-Cyclohexanedione exists in solution predominantly as the enol tautomer. Enolization of 1,3-cyclohexanedione.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
Oppositely, withdrawing electron density is more favourable: (see the picture on the right). The -M effect of the nitroso group. As a result, the nitroso group is a deactivator. However, it has available to donate electron density to the benzene ring during the Wheland intermediate, making it still being an ortho / para director.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
Catechin possesses two benzene rings (called the A and B rings) and a dihydropyran heterocycle (the C ring) with a hydroxyl group on carbon 3. The A ring is similar to a resorcinol moiety while the B ring is similar to a catechol moiety. There are two chiral centers on the molecule on carbons 2 and 3. Therefore, it has four diastereoisomers.