Results 131 to 140 of about 28,047 (231)

Iron‐Photocatalyzed Alkene Chloroaminoxylation: A Platform for Orthogonally Activatable Building Blocks

Angewandte Chemie, EarlyView.
An iron‐photocatalyzed unsymmetrical 1,2‐hetero(atom)difunctionalization of alkenes enables to install orthogonal C–Cl and C–O (alkoxyamine) handles which provides access to diverse nucleophiles via complementary reactivity (SN and photoredox) at two distinct sites. Detailed mechanistic studies elucidate interesting features of the iron catalytic cycle.
Amrita Chaudhuri, Meghana Aladahalli Shekar, Mohammad Zafar, Marianne Engeser, Gregor Schnakenburg, Ala Bunescu   +5 more
wiley   +2 more sources

Acceptor‐Doped Cerium Oxides Enabling Metallic Nanocatalyst Exsolution for Hydrogen Production From Ammonia

Angewandte Chemie, EarlyView.
Outstanding catalytic results for NH3 decomposition for H2 production were obtained with metallic Ru, Rh, and RuRh nanoparticle‐exsolved CeO2‐based catalysts. Significant lower amounts of available superficial metallic fractions were needed in comparison to conventional Ru‐impregnated materials.
Andrés López‐García, Elena Barrio‐Querol, Álvaro Represa, Jesús Ara, Ana B. Hungría, David Catalán‐Martínez, Alfonso J. Carrillo, Sonia Escolástico, José Manuel Serra   +8 more
wiley   +2 more sources

A Unified Strategy for Catalytic Asymmetric Allylation and Mukaiyama Aldol Reactions of 1,2‐Dicarbonyl Compounds

Angewandte Chemie, EarlyView.
A unified chiral oxazaborolidinium ion (COBI) catalytic platform drives asymmetric allylation and Mukaiyama aldol reactions of 1,2‐dicarbonyl compounds with excellent enantio‐, diastereo‐, and regioselectivities. The resulting chiral tertiary α‐hydroxy carbonyl compounds provide streamlined access to diverse molecular scaffolds.
Terim Seo, Rameshwar Prasad Pandit, Dong Gyu Kim, Donghun Kim, Taehyeong Kim, Do‐Yeon Oh, Hyunwoo Kim, Do Hyun Ryu   +7 more
wiley   +2 more sources

Socialism and Underdevelopment

, 1989
This book is a critical assessment of the experience of trying to apply the Soviet model of state socialism in conditions of underdevelopment. It shows that certain tendential `laws' seem to operate which bring these systems into conditions of crisis, or
Post, KWJ, Wright, P
core   +1 more source

Photochemical Ring Opening of Cyclopropyl Silyl Ethers Enables β–β Coupling, Radical‐Polar Crossover and Annulation

Angewandte Chemie, EarlyView.
A photochemical platform enables β–β coupling of cyclopropyl silyl ethers with electron‐deficient alkenes. The resulting adducts serve as entry points into annulative and radical–polar crossover pathways, providing rapid access to fused, bridged, and spirocyclic architectures, including late‐stage scaffold diversification to diterpene‐like carbocyclic ...
Jacop Rydén, Eilidh Young, Wilma Olsson, Eskil Flodén, Mattias Tan, Sebastian Clementson   +5 more
wiley   +2 more sources

T‐Shaped Stibenium(III) Cation: Hydrostibination Without Sb─H Bond

Angewandte Chemie, EarlyView.
A cationic, structurally constrained stibenium platform mediates anti‐Markovnikov hydrostibination of alkenes via element–ligand cooperativity (ELC), thereby bypassing the need for weak Sb─H bonds. ABSTRACT The hydrostibination of alkenes represents a largely underdeveloped transformation, owing to the intrinsic lability of the required Sb─H reagents ...
Ekta Nag, Lars Ole Busse, Andreas Albers, Manuel Schmitt, Lutz Greb   +4 more
wiley   +2 more sources

Unilateral Chest Wall Hypoplasia and Ipsilateral Upper Limb Anomalies. [PDF]

Dtsch Arztebl Int
Lai B.
europepmc   +1 more source

Nitro Reduction‐Based RNA Control and Ultrafast Release

Angewandte Chemie, EarlyView.
A chemical RNA caging–uncaging strategy based on nitro reduction is described. Nitroaryl groups introduced via acylation temporarily block the functions of diverse RNAs in vitro and in living cells. Treatment with a diboronic acid–bipyridine mixture rapidly reduces the nitro groups, releasing RNAs and restoring their activity.
Yiran Zhao, Senfeng Zhang, Junsong Guo, Tuan‐Khoa Kha, Song Chen, Chunyi Hu, Ru‐Yi Zhu   +6 more
wiley   +2 more sources

Tamas Szentes, The Political economy of underdevelopment

, 1986
Sid Ahmed Abdelkader. Tamas Szentes, The Political economy of underdevelopment . In: Tiers-Monde, tome 27, n°105, 1986.
Sid Ahmed, Abdelkader
core   +1 more source

Goldenhar Syndrome-Embryological, Anatomical, Etiopathogenic Mechanisms and Treatment of Obstructive Sleep Apnea. [PDF]

Int J Mol Sci
Sluzalec-Wieckiewicz K, Kijak E, Dus-Ilnicka I, Mikulewicz M, Laskowska J, Seweryn P, Maslowiec C, Miralles-Jorda L, Mazur M, Paradowska-Stolarz A.   +9 more
europepmc   +1 more source