19550-89-1Relevant articles and documents
Allylation of Aldehydes with Allyltin Compounds in Acidic Aqueous Media-A Catalytic Version
Yanagisawa, Akira,Morodome, Miwa,Nakashima, Hiroshi,Yamamoto, Hisashi
, p. 1309 - 1311 (1997)
Allylation reaction of aldehydes with allyltributyltin was achieved using Sn catalysts in acidic aqueous media. Exclusive aldehyde selectivity was observed for competitive reactions of aldehydes and ketones with allyltributyltin in the presence of 5 mol%
Gold(I)-Catalyzed Intramolecular Dehydrative Amination of Sulfamate Esters Tethered to Allylic Alcohols: A Strategy for the Synthesis of Cyclic Sulfamidates
Park, Yunjeong,Lee, Ji Sun,Ryu, Jae-Sang
supporting information, p. 2183 - 2188 (2021/03/15)
An efficient synthesis protocol for cyclic sulfamidates has been developed via catalytic intramolecular cyclizations of sulfamate esters tethered to allylic alcohols. The reactions proceed smoothly at room temperature in the presence of (IPr)AuCl (5 mol%) and AgBF4 (5 mol%). This protocol features good to excellent yields, high selectivity, broad substrate scope, and mild reaction conditions. This method is also applicable to the synthesis of a seven-membered sulfamidate. (Figure presented.).
Stereoselective Barbier-Type Allylations and Propargylations Mediated by CpTiCl3
López-Martínez, Josefa L.,Torres-García, Irene,Rodríguez-García, Ignacio,Mu?oz-Dorado, Manuel,álvarez-Corral, Miriam
, p. 806 - 816 (2019/01/24)
CpTiCl2, prepared in situ by manganese reduction of CpTiCl3, is an excellent new system for the Barbier-type allylation and propargylation of carbonyl compounds. It can be used in catalytic amounts when combined with Et3N·HBr/TMSBr, which acts as a regenerating system. The high regio- and stereoselectivity shown by this system makes it useful for prenylation and crotylation processes in the synthesis of natural products.
Syntheses of 4-Acetoxy-or acetylthio-2-substituted tetrahydrothiophene
Li, Yaxi,Ding, Rui,Liu, Yongguo,Ma, Bianbian,Sun, Baoguo,Tian, Hongyu
, p. 254 - 272 (2018/02/22)
The generality of a three-step route for the preparation of 4-Acetoxy-2-Alkyltetrahydrothiophenes was investigated, which started from 1-Alken-4-ols including epoxidation, mesylation and intramolecular nucleophilic substitution. 4-Acetoxy-2-Alkyltetrahydr