Direct reductive alkylation of amine hydrochlorides with aldehyde bisulfite adducts
作者:Marta Barniol-Xicota、Andreea L. Turcu、Sandra Codony、Carmen Escolano、Santiago Vázquez
DOI:10.1016/j.tetlet.2014.03.046
日期:2014.4
A mild procedure for the direct reaction of aromatic and aliphatic aldehyde bisulfite adducts with primary and secondary aminehydrochlorides in the presence of sodium cyanoborohydride in methanol is reported.
Liquid–Liquid Extraction Protocol for the Removal of Aldehydes and Highly Reactive Ketones from Mixtures
作者:Maria M. Boucher、Maxwell H. Furigay、Phong K. Quach、Cheyenne S. Brindle
DOI:10.1021/acs.oprd.7b00231
日期:2017.9.15
The reaction of the bisulfite ion with aldehydes to form charged bisulfite adducts is a well-established method for the purification of aldehydes. This reaction has been modified to create a convenient liquid–liquid extraction method for the removal of aldehydes from mixtures. The use of a water-miscible solvent allows the reaction to occur during a simple 30 s shaking protocol by increasing the contact
Bisulfite Addition Compounds as Substrates for Reductive Aminations in Water
作者:Xiaohan Li、Karthik S. Iyer、Ruchita R. Thakore、David K. Leahy、J. Daniel Bailey、Bruce H. Lipshutz
DOI:10.1021/acs.orglett.1c02604
日期:2021.9.17
Highly valued products resulting from reductive aminations utilizing shelf-stable bisulfiteadditioncompounds of aldehydes can be made under aqueous micellar catalysis conditions. Readily available α-picolineborane serves as the stoichiometric hydride source. Recycling of the aqueous reaction medium is easily accomplished, and several applications to targets in the pharmaceutical industry are documented
Synthesis of 3-Formylbenzenesulfonyl Chloride Derivatives
作者:Guoliang Chen、Xuefei Bao、Ziao Liu、Xinjie Liang、Dake Song、Tao Shi、Xuan Zhao、Changshun Bao
DOI:10.1055/s-0036-1589015
日期:2017.7
Abstract A synthetic route to 3-formylbenzenesulfonyl chloride derivatives from the corresponding benzaldehydes has been developed. The key step in this procedure is the conversion of aldehyde bisulfite adducts to target compounds via a two-stage reaction in the presence of Na2SO4. A series of 3-formylbenzenesulfonyl chloride derivatives were prepared by this method and identified by chemical derivatization
摘要 已开发出由相应的苯甲醛制得3-甲酰基苯磺酰氯衍生物的合成途径。该过程中的关键步骤是在Na 2 SO 4存在下通过两步反应将亚硫酸氢盐醛加成物转化为目标化合物。通过该方法制备了一系列3-甲酰基苯磺酰氯衍生物,并通过化学衍生化方法进行了鉴定。 已开发出由相应的苯甲醛制得3-甲酰基苯磺酰氯衍生物的合成途径。该过程中的关键步骤是在Na 2 SO 4存在下通过两步反应将亚硫酸氢盐醛加成物转化为目标化合物。通过该方法制备了一系列3-甲酰基苯磺酰氯衍生物,并通过化学衍生化方法进行了鉴定。 本文的主要数据可从http://www.thieme-connect.com/ejournals/toc/synthesis在线获得,并可使用以下DOI进行引用:10.4125 / pd0093th。
One-Pot Conversion of Aldehyde Sodium Bisulfites into Nitriles
作者:Jintao Zhu、Guangwei Song、Guoxin Yao、Gang Chen
DOI:10.1080/00397911.2010.548890
日期:2012.7.1
Abstract Direct conversion of aldehyde sodium bisulfites to the corresponding nitriles can be easily performed by the reaction of an aldehyde sodium bisulfites with a slight execss of hydroxylamine hydrochloride in refluxing toluene and in the presence of 1.0 equivalents of pyridine as catalyst. GRAPHICAL ABSTRACT