Results 201 to 210 of about 10,800 (238)

Phosphoric Acid-Catalyzed Enantioselective Synthesis of Axially Chiral Cyclobutanamides

Organic Letters
Chiral cyclobutanamide is a privileged scaffold in drug discovery. Here, we describe, for the first time, the synthesis of axially chiral cyclobutanamides via phosphoric acid-catalyzed enantioselective condensation between N-arylcarbamyl cyclobutanones and hydroxylamines.
Guang Cheng, Jinfeng Zheng, Yilin Zhu, Yuming Yang, Guanyinsheng Qiu, Wei-Yi Ding, Shaoyu Li   +6 more
openaire   +2 more sources

ChemInform Abstract: Reactions of Chiral Phosphorous Acid Diamides

ChemInform, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
V. BLAZIS, A. DE LA CRUZ, K. KOELLER, C. D. SPILLING   +3 more
openaire   +1 more source

Chiral Symmetric Alkylamides of Phosphoric and Phosphonic Acids

Phosphorus, Sulfur, and Silicon and the Related Elements, 2002
(2002). Chiral Symmetric Alkylamides of Phosphoric and Phosphonic Acids. Phosphorus, Sulfur, and Silicon and the Related Elements: Vol. 177, No. 8-9, pp. 2109-2110.
Oleg I. Kolodiazhnyi, Natalia Andruschko
openaire   +1 more source

Aporphinol-Derived Chiral Phosphoric Acids: Synthesis and Catalytic Performance

Organic Letters
A novel series of chiral phosphoric acid (CPA) catalysts based on a bioinspired aporphinol scaffold has been developed. The efficacy of these CPAs is demonstrated through enantioselective transfer hydrogenation of C2-substituted quinolines, achieving excellent enantioselectivities (93-99% enantiomeric excess).
Jun Zhao, Xiuqi Shi, Shuo Tan, Yue Li, Ran Li, Birou Zhang, Hao Song, Fei Xue, Yong Qin   +8 more
openaire   +2 more sources

ChemInform Abstract: Chiral Phosphoric Acid Catalyzed Stereoselective Spiroketalizations

ChemInform, 2013
AbstractReview: 36 refs.
Pavel Nagorny, Zhankui Sun, Grace A. Winschel   +2 more
openaire   +1 more source

Enantioselective Construction of Chiral THIQUINOL and Its Derivatives via Chiral Phosphoric Acid Catalysis

Organic Letters
The first catalytic enantioselective construction of chiral THIQUINOL and its derivatives has been accomplished through a chiral phosphoric-acid-catalyzed direct aza-Friedel-Crafts reaction of 3,4-dihydroisoquinolines with 2-naphthols/anthracen-2-ols/phenanthren-9-ol.
Yongbiao Guo, Ye Zhang, Lina Chen, Xiandong Dai, Xujin Zhang, Fanhua Meng, Zhenhua Gao   +6 more
openaire   +2 more sources

Chiral Phosphoric Acid Catalyzed Spiroacetalizations

Synfacts, 2012
openaire   +1 more source

Synthesis of Biphenanthrol-Based Confined Chiral Phosphoric Acid

Chinese Journal of Organic Chemistry, 2022
Zhipeng Zhang, Shouyi Cen
openaire   +1 more source

Chiral Phosphoric Acid Catalyzed Asymmetric Homoallenylboration

Synfacts, 2015
openaire   +1 more source

Bile acids and the gut microbiota: metabolic interactions and impacts on disease

Nature Reviews Microbiology, 2022
Stephanie Collins, Andrew D Patterson
exaly