Results 31 to 40 of about 121,287 (309)
, 2016 Cascade Cyclization: Carbopalladative Cyclization Followed by Electrocyclic Closure as a Route to Complex ...
Bahâa Salem (2987376) +2 more
core +3 more sources
Indonesian Journal of Chemistry, 2010 Two steps transformation of (+)-citronellal, cyclization and hydrogenation, on ZnBr2/γ-Al2O3 and Ni/γ-Al2O3 catalyst have been realized with the selectivity to cyclization products (isopulegols) was very high (yield up to ~92.58%) over ZnBr2/γ-Al2O3 ...
Elvina Dhiaul Iftitah +3 more
doaj +1 more source
Asymmetric Nazarov cyclizations [PDF]
Tetrahedron, 2011 The Nazarov cyclization1 is described as the 4 π electron conrotatory cyclization of a pentadienyl cation. The past 20 years have brought resurgent interest in this reaction most likely due to the realization that it can provide rapid and efficient access to multisubstituted cyclopentenones with excellent stereochemical control at two (or even three ...
Naoyuki, Shimada +2 more
openaire +2 more sources
Silver-Catalyzed Tandem Cyclization for Syntheses of Azaoxa- and Diazaspirocycles [PDF]
, 2022 1-Azaspirocycles are important structures present in many drugs and natural products. This paper describes the silver-catalyzed tandem cyclization strategy, which provides atom-economical access to various azaoxa- and diazaspirocycles from alkynes ...
Momoka, Shimaoka, Masahiro, Sai
core +2 more sources
A Phage-Compatible Strategy to Access Macrocyclic Peptides Featuring Asymmetric Molecular Scaffolds as Cyclization Units [PDF]
, 2021 The cyclization of peptides appended onto proteins or whole bacteriophages is typically achieved via disulfide formation, the use of symmetric crosslinkers or the incorporation of noncanonical amino acids.
Johan, Hekelaar +2 more
core +1 more source
Frontiers in Chemistry, 2015 Understanding of the effects of the backbone cyclization on the structure and dynamics of a protein is essential for using protein topology engineering to alter protein stability and function.
Frank H Schumann +6 more
doaj +1 more source
Cyclic Peptoid-Peptide Hybrids as Versatile Molecular Transporters
Frontiers in Chemistry, 2021 Addressing intracellular targets is a challenging task that requires potent molecular transporters capable to deliver various cargos. Herein, we report the synthesis of hydrophobic macrocycles composed of both amino acids and peptoid monomers. The cyclic
Claudine Nicole Herlan +6 more
doaj +1 more source
Enzymatic Bromocyclization of α‐ and γ‐Allenols by Chloroperoxidase from Curvularia inaequalis
ChemistryOpen, 2022 Vanadate‐dependent chloroperoxidase from Curvularia inaequalis catalyzes 5‐endo‐trig bromocyclizations of α‐allenols to produce valuable halofunctionalized furans as versatile synthetic building blocks. In contrast to other haloperoxidases, also the more
Janne M. Naapuri +3 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2017 Intramolecular nucleophilic and electrophilic cyclization of N-alkyne-substituted pyrrole esters is described. Efficient routes towards the synthesis of pyrrolopyrazinone, pyrrolotriazinone and pyrrolooxazinone have been developed.
Işıl Yenice +2 more
doaj +1 more source
Recent Advances in the Biosynthesis of Carbazoles Produced by Actinomycetes
Biomolecules, 2020 Structurally diverse carbazole alkaloids are valuable due to their pharmaceutical properties and have been isolated from nature. Experimental knowledge on carbazole biosynthesis is limited. The latest development of in silico analysis of the biosynthetic
Masaya Kobayashi, Tomohisa Kuzuyama
doaj +1 more source