Results 91 to 100 of about 81,226 (245)

Click‐Spaltung quartärer Anilinium‐Tetrazine ermöglicht Kaskadenaufbau multifunktioneller biomolekularer Gerüste

open access: yesAngewandte Chemie, EarlyView.
Die Click‐Chemie hat sich von dem Aufbau kovalenter Bindungen hin zum Spalten von Bindungen weiterentwickelt. Hier wird über einen Kaskaden‐Aufbau berichtet, der diese Verfahren kombiniert, um multifunktionale biomolekulare Gerüste in einer modularen Ein‐Topf‐Reaktion aufzubauen.
Markus Staudt   +9 more
wiley   +1 more source

Diels–Alder reactions in confined spaces: the influence of catalyst structure and the nature of active sites for the retro-Diels–Alder reaction

open access: yesBeilstein Journal of Organic Chemistry, 2016
Diels–Alder cycloaddition between cyclopentadiene and p-benzoquinone has been studied in the confined space of a pure silica zeolite Beta and the impact on reaction rate due to the concentration effect within the pore and diffusion limitations are ...
Ángel Cantín   +2 more
doaj   +1 more source

Enantio- and Periselective Nitroalkene Diels-Alder Reactions Catalyzed by Helical-Chiral Hydrogen Bond Donor Catalysts

open access: yesMolecules, 2013
Helical-chiral double hydrogen bond donor catalysts promote the nitroalkene Diels-Alder reaction in an enantio- and periselective manner. This represents the first asymmetric catalytic nitroalkene Diels-Alder reaction via LUMO-lowering catalysis. To gain
Zhili Peng   +2 more
doaj   +1 more source

Diels-Alder cycloaddition reaction between 1,3-butadiene and ethene leading to cyclohexene showing the rate constants for the forward and reverse processes.

open access: yes, 2019
Diels-Alder cycloaddition reaction between 1,3-butadiene and ethene leading to cyclohexene showing the rate constants for the forward and reverse processes.
Manuel Caravaca (6439517)   +2 more
core   +1 more source

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

open access: yesAngewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean   +3 more
wiley   +1 more source

Synthesis of a Stable Hydrophilic trans‐Cyclooctene Amino Acid Unlocks Fast Bioorthogonal Click Chemistry for the Generation of Antibody‐Drug Conjugates by Genetic Code Expansion

open access: yesAngewandte Chemie International Edition, EarlyView.
A novel trans‐cyclooctene (TCO) based noncanonical amino acid (ncAA) is reported, characterized by high hydrophilicity and remarkable stability to trans‐cis isomerization. Its incorporation via genetic code expansion into an antibody and subsequent conjugation resulted in a highly efficacious antibody‐drug conjugate (ADC).
Georgi R. Genov   +4 more
wiley   +1 more source

Aldehydien normaalielektronijakauman asymmetriset hetero-Diels-Alder-reaktiot

open access: yes, 2013
Tutkielmassa perehdytään aldehydien asymmetrisiin hetero-Diels-Alder-reaktioihin. Hetero-Diels-Alder-reaktio on paljon käytetty menetelmä erilaisten heteroatomin sisältävien kuusirenkaiden valmistamiseen.
Lahdenperä, Antti
core  

Towards the total synthesis of vinigrol [PDF]

open access: yes, 2006
Virigrol is a unique tricyclic diterpene containing the unprecedented decahydro-1, 5- butanonapathalene framework and with these unusual structural features it also has varied biological activity, making it a challenging synthetic target. Despite various
Johnstone, Lisa
core  

Microwave-Based Reaction Screening: Tandem Retro-Diels–Alder/Diels–Alder Cycloadditions of o-Quinol Dimers

open access: yes, 2016
We have accomplished a parallel screen of cycloaddition partners for o-quinols utilizing a plate-based microwave system. Microwave irradiation improves the efficiency of retro-Diels–Alder/Diels–Alder cascades of o-quinol dimers which generally proceed in
Moon-Il Kang (2150914)   +8 more
core   +1 more source

Diels–Alder reactions of myrcene using intensified continuous-flow reactors

open access: yesBeilstein Journal of Organic Chemistry, 2017
This work describes the Diels–Alder reaction of the naturally occurring substituted butadiene, myrcene, with a range of different naturally occurring and synthetic dienophiles.
Christian H. Hornung   +3 more
doaj   +1 more source

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