Bronsted Acid/Organic Photoredox Cooperative Catalysis: Easy Access to Tri- and Tetrasubstituted Alkenylphosphorus Compounds from Alcohols and P–H Species
A Bronsted acid/organic photoredox cooperative catalytic system toward P–C bond formation from alcohols and P–H species is developed. With the assistance of visible light and TBHP, the reactions proceeded smoothly in an environmentally benign manner to give various alkenylphosphorus compounds in high efficiency.
An iodine-mediated 1,2-arylmigration reaction of primary benzhydryl amines under transition metal-free conditions has been achieved. The crude imines generated by this rearrangement reaction can be directly transformed into various aromatic secondary amine derivatives via reduction or addition reactions. This sequential synthetic process is operationally simple and can be successfully conducted on
Advanced Synthesis of Dihydrofurans: Effect of Formic Acid on the Mn(III)-Based Oxidation
作者:Risa Matsumoto、Hiroshi Nishino
DOI:10.1080/00397911.2015.1049618
日期:2015.8.3
Abstract The Mn(III)-based oxidation of a tertiary alkylamine, such as nitrilotris(ethane-2,1-diyl) tris(3-oxobutanoate) (1) with 1,1-diphenylethene (2a), effectively proceeded in an acetic acid–formic acid mixed solvent to give nitrilotris(ethane-2,1-diyl) tris(2-methyl-5,5-diphenyl-4,5-dihydrofuran-3-carboxylate) (3). Other typical Mn(III)-based reactions of various β-diketo esters 4a–e, 2,4-pentanedione
CARBOXYLATION OF ALCOHOLS WITH CARBON MONOXIDE SUPERSATURATED IN STRONG ACID. FACILE SYNTHESIS OF 2,2-BIS(4-HALOPHENYL)ACETIC,-PROPIONIC, AND RELATED ACIDS
作者:Yukio Takahashi、Norihiko Yoneda、Hiroshi Nagai
DOI:10.1246/cl.1985.1733
日期:1985.11.5
Using 97% H2SO4 supersaturated with carbonmonoxide, bis(4-halophenyl)methanols, 1,1-bis (4-halophenyl) ethanols and related alcohols were transformed to the carboxylic acids in 60–95% yields.
Iron-Catalyzed C(sp<sup>3</sup>)C(sp<sup>3</sup>) Bond Formation through C(sp<sup>3</sup>)H Functionalization: A Cross-Coupling Reaction of Alcohols with Alkenes
作者:Shu-Yu Zhang、Yong-Qiang Tu、Chun-An Fan、Fu-Min Zhang、Lei Shi
DOI:10.1002/anie.200903960
日期:2009.11.2
Synthetic convenience: A wide range of substrates proved to be well tolerated by the novel title transformation. This protocol provides an economical and convenient strategy for the efficient access to structurally diverse secondary alcohols (see scheme).