Document Details

Document Type : Article In Journal 
Document Title :
Modern Friedel-Crafts chemistry. Part 30 - facile synthesis of isomeric tri-and tetramethyltetrahydrophenanthrenes via rearranged cycloalkylation of suitably methylated 1-(1-and 2-naphthyl)-3-pentanols
كيمياء فريدل - كرافتس. الجزء30 - لتشيد isomeric tri-and tetramethyltetrahydrophenanthrenes
 
Subject : Organic Chemistry 
Document Language : English 
Abstract : Facile methods for the synthesis of isomeric tri-and tetramethyl- tetrahydrophenanthrenes (11, 18, 21, and 27) have been accomplished through rearranged Friedel-Crafts cycloalkylation of naphthylpentanols 1-4, respectively. Thus, treatments with the mild 85% H2SO4, H3PO4 and A1C13/CH3NO2 catalysts produced 1,1,2-trimethyl-1,2,3,-tetrahydropenanthrene 11 from 2,2-dimethyl-5-(1-naphthyl)-3-pentanol 1, 3,4,4-trimethyl-1,2,3,4- tetrahydrophenanthrene 18 from 2,2-dimethyl-5-(2-naphthyl)-3-pentanol 2, 1,1,2,2-tetramethyl-1,2,3,4-tetrahydrophenanthrene 21 from 2,2,-trimethyl-5-(1- naphthyl)-3-pentanl 3 and 3,3,4,4-tetramethyl-1,2,3,4-tetrahydropenanthrene 27 from 2,2,3-trimethyl-5-(.-naphthyl)-3-pentanol 4. Treatment with the strong A1C13 catalyst resulted in varying amounts of side products. The starting and final products were characterized by elemental analysis and IR, 1H NMR and MS data. 
ISSN : 0376-4699 
Journal Name : Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry 
Volume : 49 
Issue Number : 2 
Publishing Year : 1431 AH
2010 AD
 
Article Type : Article 
Added Date : Wednesday, October 27, 2010 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
حسن عبدالقادر البارAlbar, Hassan AbdulkaderResearcherDoctoratehalbar@kau.edu.sa
على على خلفKhalaf, Ali AliInvestigatorDoctoratehalbar@kau.edu.sa
خالد ع. الفوتيEl-Fouty, Khalid O.ResearcherDoctoratehalbar@kau.edu.sa

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