An easy access to fluoroalkanes by deoxygenative hydrofluorination of carbonyl compounds via their tosylhydrazones
作者:Arvind K. Yadav、Vishnu P. Srivastava、Lal Dhar S. Yadav
DOI:10.1039/c3cc00122a
日期:——
An efficient and operationally simple synthesis of fluoroalkanes by deoxygenative hydrofluorination of carbonyl compounds via their tosylhydrazone surrogates is reported. The reaction can be carried out in a one-pot procedure directly from carbonyl compounds.
Schaefer, Ted; Niemczura, Walter P.; Sebastian, Rudy, Canadian Journal of Chemistry, 1980, vol. 58, p. 1178 - 1182
作者:Schaefer, Ted、Niemczura, Walter P.、Sebastian, Rudy、Kruczynksi, Leonard J.、Danchura, Werner
DOI:——
日期:——
Palladium-Catalyzed Substitution and Cross-Coupling of Benzylic Fluorides
作者:George Blessley、Patrick Holden、Matthew Walker、John M. Brown、Véronique Gouverneur
DOI:10.1021/ol300977f
日期:2012.6.1
Benzylic fluorides are suitable substrates for Pd(0)-catalyzed Tsuji–Trost substitution using carbon, nitrogen, oxygen, and sulfur nucleophiles and for cross-coupling with phenylboronic acid. For the bifunctionalsubstrate 4-chlorobenzyl fluoride, fine-tuning of the reaction conditions allows for the regioselective displacement of either the chlorine or fluorine substituent. The leaving group ability
苯甲酸氟化物是使用碳,氮,氧和硫亲核试剂进行Pd(0)催化的Tsuji-Trost取代以及与苯基硼酸交叉偶联的合适底物。对于双官能底物4-氯苄基氟化物,反应条件的微调允许氯或氟取代基的区域选择性置换。的氟化物VS在替代移位其它基团的离去基团的能力是CF 3 CO 2 ≈ p -NO 2 ç 6 ħ 4 CO 2 ≈OCO 2 CH 3 >˚F> CH 3 CO 2,其排名与Pd催化下的烯丙基氟化物相似。