Results 161 to 170 of about 45,362 (276)

Ruthenium-Catalyzed Intermolecular [2 + 2] Cycloaddition of Unactivated Allenes and Alkynes with Unusual Regioselectivity. [PDF]

J Am Chem Soc
Zhang C, Sung HHY, Williams ID, Wu YD, Sun J.   +4 more
europepmc   +1 more source

The First Regioselective Palladium‐Catalyzed Indolization of 2‐Bromo‐ or 2‐Chloroanilines with Internal Alkynes: A New Approach to 2,3‐Disubstituted Indoles.

, 2005
Ming Shen, Guisheng Li, Bruce Z. Lu, Azad Hossain, Frank Roschangar, Vittorio Farina, Chris H. Senanayake   +6 more
openalex   +2 more sources

Benzochromanone and Benzochromene Natural Products: Synthetic Strategies and Total Syntheses

The Chemical Record, EarlyView.
This work outlines synthetic strategies for natural products with benzochromanone and benzochromene cores. Key achievements include total syntheses of xanthones, blennolide C, gonytolide C, and teretifolione B. Spirochromanone intermediates, benzyne–furan Diels–Alder reactions, and enzymatic resolution enabled efficient and enantioselective access to ...
Takuya Kumamoto
wiley   +1 more source

Directing Effects of Silyl and Germyl Groups in Transition-Metal-Catalyzed Allylic Substitution. [PDF]

Chemistry
Brösamlen D, Oestreich M.
europepmc   +1 more source

Heterologous plastoquinone production using a newly identified O2‐dependent cyanobacterial hydroxylase

The FEBS Journal, EarlyView.
In this study, we confirm that PlqH is the hydroxylase operating in plastoquinone biosynthesis in photosynthetic cyanobacteria (Cyanobacteriia). Our phylogenetic analyses demonstrate that cyanobacterial PlqH homologues originated from hydroxylases involved in ubiquinone biosynthesis in bacteria. Plastoquinone production in Escherichia coli was achieved
Morgane Roger‐Margueritat, Margot Beltran, Juliette Schnoebelen, Laura Flandrin, Wafa Rezali, Eline Michel, Sophie S. Abby, Fabien Pierrel   +7 more
wiley   +1 more source

The development of sulfonated terpyridine ligands for control of regioselectivity in palladium-catalysed fluorination of anilides. [PDF]

Chem Sci
Dolezel J, Phipps RJ.
europepmc   +1 more source

Regioselectivity and physical nature of the interactions between (methyl)guanine with HCl and CH3OH [PDF]

Detila Diyavanga, Bienfait Kabuyaya Isamura, Mireille K. Bilonda, Frédéric Kafwaya Kahenga, Mayaliwa Muzomwe, Jules Tshishimbi Muya   +5 more
openalex   +1 more source

Engineering of the Flavone Rutinoside Biosynthetic Pathway Enables Production of Diosmin, a Venoactive Compound in Solanum lycopersicum and Nicotiana tabacum

Plant Biotechnology Journal, EarlyView.
ABSTRACT Diosmin is often used as a dietary supplement, and it is sometimes used to make phlebotropic drugs for venous diseases. Traditionally, diosmin is obtained by the dehydrogenation of the flavanone glycoside hesperidin through chemical semisynthesis.
Qianle Zhang, Qingwen Wu, Wenjing Shi, Yinai Deng, Ruoting Zhan, Dongming Ma   +5 more
wiley   +1 more source

Multi-step biocatalytic strategy to produce a library of original xylosides with various ester functions for cosmetic applications. [PDF]

RSC Adv
Jolly E, Muzard M, Plantier-Royon R, Rémond C.   +3 more
europepmc   +1 more source

Stereo- and Regioselectivity in Nitrile Oxide Cycloaddition Reactions to Norethisterone Acetate as Dipolarophile

Paolo Quadrelli, Giuseppe Faita, Mariella Mella   +2 more
openalex   +1 more source