01189nas a2200229   4500008004100000022001400041245015400055210006900209260010600278300001400384490000700398520024600405653001800651653002000669653001800689653003300707653002100740100002000761700003000781700001700811856013100828       2005                        eng d  a0040-403900aExpedient synthesis of 1,2,3-triazole-fused tetracyclic compounds by intramolecular Huisgen ('click') reactions on carbohydrate-derived azido-alkynes0 aExpedient synthesis of 123triazolefused tetracyclic compounds by  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJUL  a4585-45880 v463 a<p>An efficient, practical and convenient synthesis of 1,2,3-triazole-fused tetracyclic compounds was achieved by intramolecular 1,3-dipolar cycloaddition of carbohydrate-derived azido-alkynes. (c) 2005 Elsevier Ltd. All rights reserved.</p>10acarbohydrates10aClick chemistry10aCycloaddition10adiversity oriented synthesis10aHuisgen reaction1 aHotha, Srinivas1 aAnegundi, Ramakrishna, I.1 aNatu, A., A.  uhttps://library.ncl.res.in/content/expedient-synthesis-123-triazole-fused-tetracyclic-compounds-intramolecular-huisgen-click-001308nas a2200217   4500008004100000022001400041245012400055210006900179260010600248300001400354490000700368520044100375653001800816653001900834653003300853653002600886100002000912700001900932700001900951856012000970       2005                        eng d  a0040-403900aStereoselective synthesis of spiroannulated cyclopentenones by the Pauson-Khand reaction on carbohydrate derived enynes0 aStereoselective synthesis of spiroannulated cyclopentenones by t  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcAUG  a5329-53320 v463 a<p>The stereoselective synthesis of spiroannulated cyclopentenones by the Pauson-Khand reactions on hexose and pentose derived enynes was achieved under carbon monoxide free conditions using a stoichiometric quantity of Co-2(CO)(8). The cobalt complex of the alkyne was cleaved using dimethoxyethane-acetonitrile at 85 degrees C to furnish spiroarmulated cyclopentenones in 75-94% yields. (c) 2005 Elsevier Ltd. All rights reserved.</p>10acarbohydrates10acyclopentenone10adiversity oriented synthesis10aPauson-Khand reaction1 aHotha, Srinivas1 aMaurya, S., K.1 aGurjar, M., K.  uhttps://library.ncl.res.in/content/stereoselective-synthesis-spiroannulated-cyclopentenones-pauson-khand-reaction-0