J. Mountain Res. ISSN: 0974-3030 Vol. 13, (2018) 39-43 ©SHARAD A Short Synthesis of Cedrus deodara by H Tukaram Sukhadev Thopate 1 * 1 Department of Chemistry and Researc 414302, India Corresponding Author Email: thopatenc Received: 14.11.2018; Revised: 25.11.2 ©Society for Himalayan Action Resear Abstract: A short synthesis of ar- hima p-iodotoluene with ethyl sorbate would and Raney-nickel alloy gives the satur ester with methyl magnesium iodide fo would furnish a sesquiterpene, ar-himac Keywords: Heck reaction • p-iodotolu Introduction A large number of natur sesquiterpenes possesses a w applications in drugs, pharmace paints, perfumery, agriculture an (Chavan et.al., 2012). Himachalene and biologically important clas occurring sesquiterpene hydr synthetically challenging benzo(7 system (Silva, 2008; Srikrishn Himachalene is found as essential o several cedar woods, which include Loud, Cedrus atlantica and Cedrus Himalayan and Morroccon fore 1952). The different components of Cedrus deodara shows insecticid activity and therefore used in p (Chaudhary et. al., 2011). Himac isolated as pheromonial componen Aphthona flava and Phyllotreta c 39 http://j Sesquiterpene Ar- Himachale Heck reaction ch Center, New Arts, Commerce and Science College, Par cl@rediffmail.com 2018 Accepted:10.12.2018 rch and Development achalene was carried out by palladium catalyzed Heck re d yield the conjugated ester. Further hydrogenation of con rated ester in two steps and in high overall yield. Grigna ollowed by Polyphosphoricacid cyclodehydration of the r chalene. uene • PPA • Sesquiterpene • ar- himachalene rally occurring wide range of euticals, rubber, nd many others e is a structurally ss of naturally rocarbons the 7]annulene ring na et.al, 2004). oil extracted from e Cedrus deodara s libani found in ests (Rao et.al., and essential oil dal and larvicidal pest management chalene was also nt of flea beetles; cruciferae, which are typically produced by onl both sexes (Bartlet et. al., 2001 The structure of ar-himachalen basis of spectral evidences synthesis has carried out by routes first time based on spect et.al., 1968; Pandey et. al. synthetic approach of ar- hima by the use of tricyclic sesquiter a complex starting compound Recently, an enantioselectiv himachalene was reported by approach (Mori, 2005). The acyl derivatives of its shows (Chaudhary et. al., 2014). In recent years, the palladium haloarenes and haloalkenes wit carbon-carbon bonds, Heck rea interest in the synthesis of natu et. al., 2011). Heck reaction ha jmr.sharadpauri.org ene from rner, Ahmednagar (MS) eaction. Heck reaction of njugated ester by NaOH ard reaction of saturated resultant tertiary alcohol ly one sex but attract 1). ne has proved on the and its laboratory y two different long tral evidences (Joseph ., 1968). The third achalene was reported rpene viz. longifolene, (Mehta et. al., 1974). ve synthesis of ar- y chirality induction synthesized aryl and antimicrobial activity catalyzed coupling of th olefins to form new action have gained our ural products (Hossini s opened the door to a