Triflic Acid Catalyzed Oxidative Lactonization and Diacetoxylation of Alkenes Using Peroxyacids as Oxidants
作者:Yan-Biao Kang、Lutz H. Gade
DOI:10.1021/jo202491y
日期:2012.2.3
A clean and efficient diacetoxylation reaction of alkenes catalyzed by triflic acid using commercially available peroxyacids as the oxidants has been developed. This method was also applied in oxidative lactonizations of unsaturated carboxylic acids in good to high yields.
Efficient Diacetoxylation of Alkenes via Pd(II)/Pd(IV) Process with Peracetic Acid and Acetic Anhydride
作者:Chan Pil Park、Joo Ho Lee、Kyung Soo Yoo、Kyung Woon Jung
DOI:10.1021/ol1001686
日期:2010.6.4
A palladium-catalyzed diacetoxylation of alkenes in the presence of peracetic acid and aceticanhydride was developed to produce diacetates efficiently and diastereoselectively. Due to its mild conditions, this method was suitable for a broad range of substrates encompassing conjugated and nonconjugated olefins.
Green Diacetoxylation of Alkenes in a Microchemical System
作者:Jeong Hyeon Park、Chan Yi Park、Hyun Seung Song、Yun Suk Huh、Geon Hee Kim、Chan Pil Park
DOI:10.1021/ol3026445
日期:2013.2.15
The palladium-catalyzed diacetoxylation and trifluoromethanesulfonic acid-catalyzed diacetoxylation using inexpensive and environmentally friendly hydrogenperoxide and peracetic acid were successfully conducted with the help of microchemical technology. Excellent yield and selectivity were achieved in significantly shortened reaction times without the decomposition of explosive oxidants and further
Access to <i>N</i>-Alkylazaheterocyclic Salts by Activation of Alkoxy C–O Bonds in Polyol Esters
作者:Zhan Shi、Qiang Bian、Zhi Li
DOI:10.1021/acs.joc.3c00383
日期:2023.7.21
are conveniently synthesized from polyolesters and azaheterocyclic salts under solventless conditions. In particular, paraquat-like derivatives showed comparable herbicidal activity toward several common weeds. Mechanistic studies suggest that polyesters likely underwent partial hydrolysis and neighboring group participating dehydration under the action of acidic salt to generate five-membered ring