WebDec 5, 2024 · Ortho, Para Directing Group. If the relative yield of the ortho product and that of the para product are higher than that of the meta product, the substituent on the benzene ring in the monosubstituted benzene is called an ortho, para directing group. If the opposite is observed, the substituent is called a meta directing group. Web*CH3-Activating, ortho, para-directing *CF3- Deactivating, meta-directing Select all the statements that correctly describe the mechanism for the nitration of benzene. *In the first step, the pi system of the aromatic ring reacts with the nitronium ion. *In the second step, H2O acts as a base to remove H+ from the intermediate.
Why is a hydroxyl group more activating than a …
WebApr 4, 2016 · When CF3 is adjacent to a carbocation like in the specified ortho and para resonance structures, note that: CF3 is VERY inductively electron-withdrawing (three fluorines on the same carbon, all quite electronegative...). Carbo cations are inherently electron-deficient/electropositive. WebFeb 26, 2015 · The A protons nicely reflect the ortho-para direction since they haven't shifted from benzene's 7.26 ppm signal and the B and C protons are all upfield as expected. Also I don't think steric hindrance is a … esb1 portable golf launch monitor
Solved 12)Which of the following groups are ortho/para - Chegg
Webortho meta para ortho + para meta 44 - 55 99 trace 70 - 30 100 trace 37 1 62 99 1 18 80 2 20 80 19 80 1 20 80 6.4 93.2 0.3 6.7 93.2 Substituent CH 3 58 4 38 96 4 Organic Lecture Series 28 • Orientation: –certain substituents direct preferentially to ortho & para positions; others to meta positions –substituents are classified as either Webc: cl, oh, ch3 Sets of substituents are all ortho/para directing in electrophilic aromatic substitution reactions? (2) B: CH3, NH2, Br Sets of substituents are all meta directing in … WebPhenol is an ortho/para director, but in a presence of base, the reaction is more rapid. It is due to the higher reactivity of phenolate anion. The negative oxygen was 'forced' to give electron density to the carbons (because it has a negative charge, it has an extra +I effect). fingers inc mystery of love