99901-71-0

Upstream product

• 937-63-3 p-Tolyl chlorothionoformate 
• 84000-24-8 (3aα,4α,5β,5aβ,8β,8aβ)-decahydro-4-hydroxy-2,2,5,8-tetramethylcyclopentapentalene 
• 90171-39-4 C₁₆H₂₄O₃ 
• 90171-37-2 ((1S,5S)-4,7,7-Trimethyl-8-oxo-spiro[4.4]non-1-yl)-acetic acid methyl ester 
• 90171-38-3 (3aα,5aβ,8β,8aβ)-1,2,3a,5,5a,6,7,8-octahydro-2,2,8-trimethylcyclopentapentalene-3,4-dione 
• 90171-41-8 (3α,3aα,5aβ,8β,8aβ)-octahydro-3-hydroxy-2,2,8-trimethylcyclopentapentalen-4(5H)-one 
• 99901-70-9 (5R,5aR,8S,8aR)-2,2,5,8-Tetramethyl-1,2,5a,6,7,8-hexahydro-5H-cyclopenta[c]pentalen-4-one 
• 90171-40-7 C₁₆H₂₆O₃ 
• 99901-69-6 (5aβ,8β,8aβ)-1,2,5a,6,7,8-hexahydro-2,2,8-trimethylcyclopentapentalen-4(5H)-one 
• 99901-68-5 Methanesulfonic acid (3R,3aS,5aS,8R,8aS)-2,2,8-trimethyl-4-oxo-decahydro-cyclopenta[c]pentalen-3-yl ester 

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