203449-34-7

Upstream product

• 6852-60-4 N-tert-butyl-2-methylpropanimine 
• 177338-13-5 3-(tert-butyldiphenylsilyloxy)propyl bromide 
• 681028-75-1 isobutyraldehyde N-(tert-butyl)-imine 

Downstream Products

• 203449-37-0 (5-Bromo-4,4-dimethyl-hex-5-enyloxy)-tert-butyl-diphenyl-silane 
• 203449-38-1 (1R,2S)-2-[5-(tert-Butyl-diphenyl-silanyloxy)-2,2-dimethyl-1-methylene-pentyl]-5-oxo-cyclopentanecarboxylic acid (1R,2S,3R,4S)-3-[benzenesulfonyl-(3,5-dimethyl-phenyl)-amino]-1,7,7-trimethyl-bicyclo[2.2.1]hept-2-yl ester 
• 382139-46-0 3-methoxymethoxy-4,4-dimethyl-8,8-dibromo-1,7-octadiene 
• 382139-44-8 4,4-dimethyl-7-t-butyldiphenylsilanyloxy-1-heptene-3-ol 

Relevant academic research and scientific papers

Anionic ring expansion reactions of oxabicyclo[4.2.1]heptenones. An efficient entry into the carbon framework of oxygenated cembranoids

Oxabicyclo[2.2.1]heptenones undergo 2-carbon ring expansion reactions when subjected to anionic condensations and Michael acceptors. They also undergo condensation, fragmentation, and elimination reactions in their anionic couplings with aldehydes. As an outgrowth of this interesting chemistry, we have been able to access the carbon skeleton of oxygenated cembranoids by subjecting bis-activated ene-yne 39 to the enolate from oxabicyclo[2.2.1]heptenone 1.

Synthesis and Odor of Chiral Partial Structures of Khusimone: Part 3

Khusimone (1), one of the main odor-donating compounds of vetiver oil, is subject of the following study on structure/odor relationship. The omittance of the methano bridge of the tricyclic khusimone should lead to the bicyclic partial structure (-)-2. Un