Results 101 to 110 of about 45,362 (276)

Cu(I)-Catalyzed Regioselective Diamination of Conjugated Dienes via Dual Mechanistic Pathways

, 2010
Baoguo Zhao, Xingao Peng, Sunliang Cui, Yian Shi   +3 more
openalex   +2 more sources

Short-step Synthesis of Cordytakaoamide B and Cordycepamide C via Intramolecular Regioselective Oxidation-Lactone Formation [PDF]

, 2022
Yusuke Kasai, Takamitsu Ogawa, Mao Kawata, Kana Tanigawa, Abdelsamed I. Elshamy, Tatsuro Yoneyama, Masaaki Noji, Akemi Umeyama, Hiroshi Imagawa   +8 more
openalex   +1 more source

One‐Pot Ruthenium‐Catalyzed Synthesis of Benzyl/Allyl‐Halide Substituted (dihydro)naphthalenes via Radical Benzannulation

ChemistryEurope, EarlyView.
A one‐pot protocol to synthesize reactive benzyl‐ and allyl‐halide‐substituted (dihydro)naphthalenes from 2,3‐aryl‐1,3‐butadiene substrates and halogenated alkanes has been developed, using [Cp*RuCl(PPh3)2] as the catalyst. Mechanistic studies revealed an atom transfer radical addition and radical benzannulation sequence, followed by HCl elimination ...
Nicole S. van Leeuwen, David Vesseur, Thijmen Bonhoff, Jeffrey van Laar, Coert E. J. van Lare, Simon Mathew, Sonja Pullen, Joost N. H. Reek, Aalbert Zwijnenburg, Bas de Bruin   +9 more
wiley   +1 more source

Monooxygenase-catalyzed regioselective hydroxylation for the synthesis of hydroxyequols

, 2019
Takafumi Hashimoto, Daiki Nozawa, Katsuyuki Mukai, Akinobu Matsuyama, Kouji Kuramochi, Toshiki Furuya   +5 more
openalex   +2 more sources

The Challenging P‐Alkylation of Aromatic Phosphorus Heterocycles and Follow‐Up Reactions

ChemistryEurope, EarlyView.
P‐alkylation of λ3σ2‐phosphinines is hindered by weak nucleophilicity and scarce synthetic access, previously requiring multistep routes or extreme electrophiles. A direct ambient‐condition method is reported using 3,5‐bis(trimethylsilyl)‐phosphinine/B(C6F5)3 with esters or iso(thio)cyanates to generate stable 1‐R‐phosphininium salts.
Samantha Frank, Ádám Horváth, Duy Nguyen, Moritz J. Ernst, Simon Steinhauer, Zoltán Benkő, Christian Müller   +6 more
wiley   +1 more source

Metal‐Free Regioselective Direct C(4)−H Amination of Quinazoline with N‐fluorobenzenesulfonimide [PDF]

Yong Wang, Xueying Lin, Xianyu Ying, Shan Shan Hu, Hongjun Zhu   +4 more
openalex   +1 more source

Regioselectively Modified Stereoregular Polysaccharides XIII. Polymerization of 3-Deoxygenated 1,6-Anhydroglucopyranose Derivative [PDF]

, 1989
Kazukiyo Kobayashi, Hiroshi Sumitomo, Hiroshi Shiozawa   +2 more
openalex   +1 more source

Skeletal Editing from Pyridine to Aniline via C‐Insertion and N‐Isomerization

ChemistryEurope, EarlyView.
A concise protocol is presented that converts pyridines into anilines by externalizing the original pyridine nitrogen at either the "ipso" or "ortho" position, which results in para or meta‐primary aniline products. A key carbene‐insertion step precedes nitrogen migration, preserving both ring size and overall structure.
Yun Luo, Jing Dai, Yongchang Wei, Chang Min   +3 more
wiley   +1 more source

Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview

Chemistry – A European Journal, EarlyView.
The graphical abstract summarizes the review “Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview”, highlighting representative Pd(II)‐catalyzed methods for the β‐arylation of α‐amino acids. Key mechanistic features, substrate diversity, and synthetic relevance of these transformations are showcased. Abstract Metal‐catalyzed C─
Davide Illuminati, Claudio Trapella, Vinicio Zanirato, Virginia Cristofori, Anna Fantinati   +4 more
wiley   +1 more source

Identification, Characterization, and Catalytic Mechanism of Regioselective UbiA Prenyltransferases in Morus Plants [PDF]

S.C. Liu, Yanxin Tao, Yuchao Zhang, Jiahui Gong, Zhenkun Wu, Zhao Wang, Zhoujie An, Runjie Shi, Yu Zhao, Eman Shawky, Zhichao Xu, Wei Zhu, Jingkui Tian   +12 more
openalex   +1 more source