846540-76-9

Upstream product

• 62269-20-9 3-methyl-4-(trimethylsilyloxy)-3(Z)-penten-2-one 
• 74590-73-1 1,3-bis(trimethylsiloxy)-1-methoxybuta-1,3-diene 
• 81114-98-9 Chan's diene 
• 90857-62-8 Brassard's diene 
• 13257-82-4 3-methyl-4-(trimethylsilyloxy)-3-penten-2-one 

Downstream Products

• 846540-83-8 [2-(methoxycarbonyl)-3,4,5-trimethylphenyl] trifluoromethanesulfonate 

Relevant academic research and scientific papers

Synthesis of functionalized 2-alkoxybenzoates, 2-aryloxybenzoates and xanthones based on formal [3+3] cyclocondensations of 3-alkoxy- and 3-aryloxy-1-silyloxy-1,3-butadienes with 3-silyloxy-2-en-1-ones

Functionalized 2-alkoxy- and 2-aryloxybenzoates were prepared by formal [3+3] cyclocondensations of 3-alkoxy- and 3-aryloxy-1-silyloxy-1,3-butadienes with 3-silyloxy-2-en-1-ones. The reaction of 2-aryloxybenzoates with concentrated sulfuric acid resulted in the formation of xanthones.

Synthesis of biaryls, fluorenones, cyclopenta[def]phenanthren-4-ones, and benzophenones based on formal [3+3] cyclocondensations of 1,3-bis(silyloxy)buta- 1,3-dienes with 3-(silyloxy)-2-en-1-ones

Functionalized fluorenones were efficiently prepared in four steps. The [3+3] cyclization of 1,3-bis(silyloxy)buta-1,3- dienes with 3-(silyloxy)-2-en-1- ones afforded salicylates that were transformed into their enol triflates. The Suzuki cross-coupling r

Synthesis of dibenzo[b,d]pyran-6-ones based on [3 + 3] cyclizations of 1,3-bis(silyl enol ethers) with 3-silyloxy-2-en-1-ones

(Chemical Equation Presented) Functionalized dibenzo[b,d]pyran-6-ones were prepared by formal [3 + 3] cyclization of 1,3-bis(silyl enol ethers) with 3-silyloxy-2-en-1-ones or 1,1-diacetylcyclopropane to give functionalized salicylates, Suzuki cross-coupling reactions of the corresponding triflates, and subsequent BBr3-mediated lactonization. A second approach to dibenzo[b,d]pyran-6-ones relies on the [3 + 3] cyclization of 1,3-bis(silyl enol ethers) with 1-(2-methoxyphenyl)-1-(trimethylsilyloxy)alk-1-en-3-ones and subsequent BBr3-mediated lactonization.

Synthesis of functionalized arylalkyl and diaryl ethers by [3+3] cyclization of 3-alkoxy- and 3-aryloxy-1-siloxy-1,3-butadienes with 3-(silyloxy)alk-2-en-1-ones

Functionalized diaryl ethers were prepared by [3+3] cyclization of 3-aryloxy-1-siloxy-1,3-butadienes with 3-(silyloxy)alk-2-en-1-ones.

Synthesis of fluorenones based on a '[3+3] cyclization/Suzuki cross-coupling/Friedel-Crafts acylation' strategy

Functionalized fluorenones were prepared by sequential '[3+3] cyclization-Suzuki cross-coupling/Friedel-Crafts acylation' reactions.

Synthesis of 3-alkyl- and 3-chloroalkyl-2-hydroxybenzoates based on [3+3] cyclizations of 4-alkyl- and 4-chloroalkyl-1,3-bis(trimethylsilyloxy)buta-1,3- dienes

The TiCl4-mediated [3+3] cyclization of 4-alkyl- and 4-chloroalkyl-1,3-bis(trimethylsilyloxy)buta-1,3-dienes with 3-silylalk-2-en-1-ones afforded 3-alkyl- and 3-chloroalkyl-2-hydroxybenzoates, respectively; the latter containing a remote chlori

Synthesis of dibenzo[b,d]pyran-6-ones based on a '[3+3] cyclization-Suzuki cross-coupling' strategy

Functionalized dibenzo[b,d]pyran-6-ones were prepared by sequential '[3+3] cyclization-Suzuki cross-coupling' reactions.