Novel regiochemistry in the aqueous singlet oxygen ene reactions of carboxylic acid salts: a comparison of substrate structure
作者:Kristina L. Stensaas、Anisha Bajaj、Akram Al-Turk
DOI:10.1016/j.tetlet.2004.10.173
日期:2005.1
The singlet oxygen (1Δg) photooxidations of angelicacid salt (1), tiglicacid salt (2), 2,3-dimethyl-2-butenoic acid salt (3), 3-ethoxycarbonyl-5,6-dihydro-2-methyl-4H-pyrane acid salt (4), cis-3-hexenoic acid salt (5), and trans-3-hexenoic acid salt (6) were conducted in deuterated water. The major and minor ene allylic hydroperoxide products were quantified and indicate that the allylic hydrogen
Aqueous Solvents Dictate the Regiochemistry in the Photooxidations of α,β-Unsaturated Carboxylic Acid Salts
作者:Kristina Stensaas、Anisha Bajaj
DOI:10.1055/s-2005-872115
日期:——
Aqueous singlet oxygen photooxidations of the sodium salts of angelicacid, tiglicacid, and 2,3-dimethyl-2-butenoic acid were conducted. Each reaction produced an overwhelming amount of the ene hydroperoxide resulting from hydrogen abstraction geminal to the electron withdrawing group. The resulting regiochemistry is insensitive to the alkyl substitution on the substrate.