72848-58-9Relevant academic research and scientific papers
Silver-catalyzed cascade radical cyclization of sodium sulfinates and o-(allyloxy)arylaldehydes towards functionalized chroman-4-ones
Chen, De-Mao,Han, Qing-Qing,Li, Guang-Hui,Sun, Yuan-Yuan,Wang, Zu-Li,Xu, Xin-Ming,Yu, Xian-Yong
, (2020)
An efficient method for the synthesis of functionalized Chroman-4-ones via cascade radical cyclization of sodium sulfinates and o-(allyloxy)arylaldehydes using silver as catalyst and K2S2O8 as oxidant was presented. The de
Selectfluor-Mediated Synthesis of β-Acyl Allyl Sulfones/β-Acyl Allyl Benzotriazoles from Ketones/Acetylenes, Aryl Sulfinates/Benzotriazole, and DMSO as a Dual-Carbon Synthon
Kalari, Saradhi,Karale, Uttam B.,Rode, Haridas B.
, (2022/02/07)
A Selectfluor-mediated approach for the synthesis of β-acyl allyl sulfones/β-acyl allyl benzotriazoles with excellent atom economy from readily available acetophenones/aryl acetylenes, aryl sulfinates/benzotriazoles, and dimethyl sulfoxide (DMSO) is described. In this protocol, DMSO acts as a dual-carbon synthon, resulting in a transition-metal-free construction of two C-C and one C-S or two C-C and one C-N bonds in one pot. This approach is extended to generate chemically diverse compounds. Additionally, β-acyl allyl sulfones/β-acyl allyl benzotriazoles were prepared from acetylenes instead of acetophenones.
Synthesis of sulfone-functionalized chroman-4-ones and chromans through visible-light-induced cascade radical cyclization under transition-metal-free conditions
Li, Pinhua,Liu, Qi,Mei, Yousheng,Ruan, Shuchen,Wang, Lei,Zhao, Lulu
supporting information, p. 2270 - 2278 (2020/04/21)
A highly efficient and straightforward approach has been developed for selective intramolecular radical cyclization of arylsulfinic acids with o-(allyloxy)arylaldehydes, o-(homoallyloxy)arylaldehydes and (but-3-en-1-yloxy)benzenes. This photoinduced reaction generated sulfone-functionalized chroman-4-ones and chromans in good to excellent yields under simple and mild conditions without an external photocatalyst.
