846540-83-8

Upstream product

• 358-23-6 trifluoromethylsulfonic anhydride 
• 846540-76-9 methyl 2-hydroxy-4,5,6-trimethylbenzoate 

Downstream Products

• 846540-92-9 methyl 2,3,4-trimethyl-6-(2-methoxyphenyl)benzoate 

Relevant academic research and scientific papers

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 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 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.