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Less aromatic tha Pers Syntheni's chloride reacts with itself to form 9, 10-di- hydro anthracene which readily looses two proton atton to gield anthracene. By Friedal craft Reaction:- Benzyl jd H CH2-cl Hi ca-CH2 H# Benzyl chloride WIDE + Benzene D1C OO 0 11. The missing word is: ____________
Less aromatic tha Pers Syntheni's chloride reacts with itself to form 9, 10-di- hydro anthracene which readily looses two proton atton to gield anthracene. By Friedal craft Reaction:- Benzyl jd H CH2-cl Hi ca-CH2 H# Benzyl chloride WIDE + Benzene D1C OO 0 11. The missing word is: ____________
Pers Syntheni's
By Haworth synthesis & -This involves the treatment of benzine with pthalic anhydride in the presence of Aleds to form artho benzyl benzoic aud 11 0 Alcdz 2 HCd phthalic anhydride. The missing word is: ____________
By Haworth synthesis & -This involves the treatment of benzine with pthalic anhydride in the presence of Aleds to form artho benzyl benzoic aud 11 0 Alcdz 2 HCd phthalic anhydride. The missing word is: ____________
Haworth
Then D-benzylbenzoic acid treated with concitta to give 9, 10- anthraquinone.Now, distillation 1,4- of anthraquinone with zinc dust gields anthraum Alcez H H 9,10-Bihydroanthracene H of zn Shot on Y15 Vivo Al camerard quinone O -24 000 11. The missing word is: ____________
Then D-benzylbenzoic acid treated with concitta to give 9, 10- anthraquinone.Now, distillation 1,4- of anthraquinone with zinc dust gields anthraum Alcez H H 9,10-Bihydroanthracene H of zn Shot on Y15 Vivo Al camerard quinone O -24 000 11. The missing word is: ____________
concitta
By of 1,4 produe Anthracen trioxid anthraq Know онн 0 0-methy When Anthrace 11 0. The missing word is: ____________
By of 1,4 produe Anthracen trioxid anthraq Know онн 0 0-methy When Anthrace 11 0. The missing word is: ____________
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0-Benzyl benoic acid canc.+bsay bod dust Anthracene. The missing word is: ____________
0-Benzyl benoic acid canc.+bsay bod dust Anthracene. The missing word is: ____________
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Study Notes
Synthesis of Anthracene
- Less aromatic than Pers Syntheni's chloride, which reacts with itself to form 9, 10-di-hydro anthracene, readily losing two protons to yield anthracene
Friedal Craft Reaction
- Benzyl chloride (C6H5CH2Cl) reacts with benzene in the presence of AlCl3 to form diphenylmethane (C6H5CH2C6H5)
Haworth Synthesis
- Benzene reacts with phthalic anhydride in the presence of AlCl3 to form ortho-benzylbenzoic acid
- Ortho-benzylbenzoic acid is then treated with conc. HCl to give 9,10-anthraquinone
- Distillation of 9,10-anthraquinone with zinc dust yields anthracene
1,4-Addition Reaction
- Anthraquinone reacts with zinc dust to form 9,10-dihydroanthracene
- 9,10-Dihydroanthracene loses two protons to yield anthracene
Oxidation Reaction
- Anthracene reacts with oxygen to form anthraquinone
- 1,4-Addition of anthracene trioxide yields 9,10-anthraquinone
- 9,10-Anthraquinone is reduced to anthracene in the presence of zinc dust
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Description
Test your knowledge on the synthesis of anthracene derivatives using Pers Syntheni's chloride and the reactions involved in forming compounds like 9,10-di-hydro anthracene and anthracene. Questions also cover Friedel-Crafts reaction and Haworth synthesis methods.
