78148-92-2

Upstream product

• 70206-76-7 (1R,3aR,6R,8aS)-6-Acetoxy-1,7,7-trimethyl-1,2,3,3a,5a,6,7,8-octahydro-cyclopenta[c]pentalene-4-carboxylic acid methyl ester 
• 78098-04-1 (3aR,5aS,6R,8aS)-6-Hydroxy-1,7,7-trimethyl-1,2,3,3a,5a,6,7,8-octahydro-cyclopenta[c]pentalene-4-carbaldehyde 
• 78098-03-0 10α-hydroxy-pentalenene 
• 70206-75-6 methyl pentalenate 
• 135761-02-3 C₂₈H₄₅O₈P 
• 135760-90-6 C₂₈H₄₃O₇P 
• 135760-89-3 {(E)-(R)-3-[(1R,3aR,6aS)-1-(4-Methoxy-benzyloxy)-2,2-dimethyl-5-oxo-hexahydro-pentalen-3a-yl]-but-1-enyl}-phosphonic acid diethyl ester 
• 135760-91-7 C₂₄H₃₄O₅ 
• 135760-88-2 (6S,6aR)-6-(4-Methoxy-benzyloxy)-5,5-dimethyl-3-trimethylsilanyl-4,5,6,6a-tetrahydro-1H-pentalen-2-one 
• 135760-92-8 (1R,3aR,5aS,6R,8aR)-6-(4-Methoxy-benzyloxy)-1,7,7-trimethyl-octahydro-cyclopenta[c]pentalen-4-one 
• 135789-11-6 [5-(4-Methoxy-benzyloxy)-4,4-dimethyl-hept-6-en-1-ynyl]-trimethyl-silane 
• 102968-58-1 4,4-Dimethyl-7-trimethylsilanyl-hept-1-en-6-yn-3-ol 
• 106211-57-8 2,2-dimethyl-5-(trimethylsilyl) pent-4-ynal 
• 106211-55-6 2,2-dimethyl-5-(trimethylsilyl) pent-4-yn-1-ol 

Relevant academic research and scientific papers

Intramolecular Photocycloadditions-Cyclobutane Fragmentation: Total Synthesis of (+/-)-Pentalenene, (+/-)-Pentalenic Acid, and (+/-)-Deoxypentalenic Acid

Pentalenene, pentalenic acid, and deoxypentalenic acid, important metabolites in the biosynthesis of the pentalenolactones, have been synthesized from methyl isobutyrate through a common intermediate.The initial key stp involves a novel conjugate addition

Intramolecular Photocycloaddition-Cyclobutane Fragmentation: A Highly Stereoselective Total Synthesis of (+/-)-Pentalenic Acid

An efficient total synthesis of pentalenic acid has been accomplished by utilizing an intramolecular photocycloaddition-cyclobutane fragmentation as the key reaction sequence.

SYNTHESIS OF PENTALENIC ACID THROUGH BIOGENETIC LIKE CYCLIZATION OF HUMULENE

Humulene furnished 4,7-epoxy-3-methylene-7,10,10-trimethyl-11-bicycloundecanol 9 in 34percent yield employing oxymercuration as a key step.On treatment with BF3.OEt2, 7,11-dihydroxy-3,7,10,10-tetramethyl-3-bicycloundecene, which was derived from 9 by ether cleavage, afforded 10α-hydroxy-pentalenene 13 (20percent) along with four byproducts.Oxidation of allylic methyl group of 13 gave methyl pentalenate in 13percent yield from 9.