Results 171 to 180 of about 207,441 (286)

Iron‐Photocatalyzed C(sp3)–H Phosphonylation of Alkanes

Angewandte Chemie, EarlyView.
Alkyl phosphonates are valuable motifs that can be prepared by phosphonylations of various common functional groups. However, direct phosphonylations of C(sp3)–H bonds are limited to activated positions. Herein, we report an iron‐photocatalyzed phosphonylation of unactivated C(sp3)–H bonds using a novel phosphite radical trap, which is equipped with an
Ya Dong, Wangyujing Han, Hanwen Zhang, Santosh K. Pagire, Harry Meats, Adam Noble, Varinder K. Aggarwal   +6 more
wiley   +1 more source

Deoxygenative phosphonation of ketones by titanium. [PDF]

Chem Sci
Wang Y, Yin K, Pang X, Shu XZ.
europepmc   +1 more source

Strategies Toward Accessing Enantioenriched (Hetero)Benzo‐Fused 5‐ and 6‐ Membered Rings via Intermolecular Carbometalation

Angewandte Chemie, EarlyView.
The use of transition‐metal catalysts and design of chiral ligands have allowed chemists to access highly functionalized benzofused 5‐ and 6‐ membered rings in high yield and enantioselectivity. A common strategy used relies on an intermolecular carbometalation across alkynes and olefins, usually followed by a subsequent intramolecular carbometalation.
Clara Jans, Armaan Grewal, Xavier Abel‐Snape, Mark Lautens   +3 more
wiley   +1 more source

One-pot synthesis of ketones and symmetrical anhydrides from carboxylic acids. [PDF]

RSC Adv
Roy S, Dolai G, Ariyan SK, Mandal B.
europepmc   +1 more source

Alcohol‐Directed Carboamination of Conjugated Enynes

Angewandte Chemie, EarlyView.
The first general three‐component intermolecular Pd‐catalyzed carboamination of conjugated enynes enables the coupling of anilines and aryl triflates to produce functionalized allenic amines, utilizing a native alcohol directing group to control regioselectivity.
Helena Solé‐Àvila, Duncan K. Brownsey, Hugo Senelle, Jerome Waser   +3 more
wiley   +1 more source

Intermolecular Cyclization of Alkyl Chains of Ketones for Constructing <i>ortho</i>-Diacylbenzenes. [PDF]

J Am Chem Soc
Yin C, Li H, Liao Y, Liu S, Tu H, Lin P, Su W.   +6 more
europepmc   +1 more source

Ketones [PDF]

Chemical & Engineering News Archive, 1947
openaire   +1 more source

Potassium‐Ligand Cooperation Facilitated Chemical Bond Activation and Catalytic Hydrogenation

Angewandte Chemie, EarlyView.
A new strategy for alkali metal‐mediated catalysis based on metal–ligand cooperation (MLC) is presented. Potassium pincer complexes exhibit remarkable reactivity toward a range of molecules via an unprecedented potassium–ligand cooperative mechanism. This reactivity enables potassium‐catalyzed hydrogenation, providing efficient reduction of ketones and
Yaoyu Liang, Irena Efremenko, Thiyagarajan Subramanian, Amit Kumar, Liat Avram, Yael Diskin‐Posner, David Milstein   +6 more
wiley   +1 more source

Continuous flow unlocks modular ketones assembly enabled by dynamic orbital selection. [PDF]

Chem Sci
Wang J, Zhou S, Hu X, Pan S, Zhuang X, Li J, Tang R, Xie Y, Sun B, Jin C.   +9 more
europepmc   +1 more source

Epimerization of chlorophyll derivatives [PDF]

, 1992
Mazaki, Hitoshi, Scheer, Hugo, Struck, Andreas, Takahashi, Terumi, Watanabe, Tadashi   +4 more
core   +1 more source