A novel camphorsulfonyloxylactonization of alkenoic acids
作者:Min Zhu、Na-Bo Sun、He Li、Jie Yan
DOI:10.1002/jhet.337
日期:——
The novel reaction of [hydroxyl (((+)‐10‐camphorsulfonyl)oxy)iodo]benzene (1) with alkenoicacids was reported. When 1 reacted with various 4‐pentenoic acids in CH3CN, camphorsulfonylactons were obtained in excellent yields in short times, some had two diastereoisomers, whereas 1 reacted with 5‐hexenoic acid, giving middle yield of camphorsulfonylacton; however, 3‐butenoic and trans‐3‐hexenoic acids
Rapid Sulfonyloxylactonization of Alkenoic Acids Under Microwave and Ultrasound Irradiation
作者:Liumian Gao、Li Li、Min Zhu
DOI:10.1080/15533174.2011.591326
日期:2011.9.1
Fast and convenient reactions were investigated under microwave and ultrasound irradiation, providing simple methods for sulfonyloxylactonization of alkenoic acids in good yields in a short time.
An Efficient Catalytic Sulfonyloxylactonization of Alkenoic Acids Using Hypervalent Iodine(III) Reagent
作者:Jie Yan、Hong Wang、Zhenping Yang、Yan He
DOI:10.1055/s-0029-1217977
日期:2009.10
A novel and efficient catalytic method for sulfonyloxylactonization of alkenoicacids is reported. (Diacetoxyiodo)benzene could be used as a recyclable catalyst in combination with m-chloroperbenzoic acid as an oxidant in the presence of sulfonic acid to effect the cyclization of various alkenoicacids in CH 2 Cl 2 at room temperature, giving sulfonyloxylactones in good yields.