نتایج جستجو برای: water one pot reactions

تعداد نتایج: 2601219  

Journal: :Matter 2023

•Thiol-ene-epoxy photochemistry for patterning diverse mechanical properties•Materials possess a stable three-orders-of-magnitude difference in Young’s modulus•Demonstration of low-cost, 3D-printed multimodulus wearable braille display Numerous research efforts seek to realize “augmented humanity,” whereby technology enhances human performance by closely interfacing engineered devices with our ...

Journal: :Chemical communications 2006
Muhammad Abbas John Bethke Ludger A Wessjohann

Selenocysteine containing peptoids and peptide-peptoid conjugates were synthesized by combinatorial Ugi-MCRs (multicomponent reactions) in water: for the first time, an acetal (selenoacetal 2a) was used in Ugi-MCR to furnish selenocysteine peptoids in one step as model compounds for selenocysteine peptides and proteins.

Journal: :Organic & biomolecular chemistry 2016
Akinari Sumita Yuko Otani Tomohiko Ohwada

While some sequential electrophilic aromatic substitution reactions, known as tandem/domino/cascade reactions, have been reported for the construction of aromatic single skeletons, one of the most interesting and challenging possibilities remains the one-pot build-up of a complex aromatic molecule from multiple starting components, i.e., ultimately multi-component electrophilic aromatic substit...

Journal: :Chemical & pharmaceutical bulletin 2012
Mekala Rajasekhar Kunda Uma Maheswara Rao Chereddy Syama Sundar Nemallapudi Bakthavatchala Reddy Sandip Kumar Nayak Cirandur Suresh Reddy

A simple and efficient one pot synthesis of 2-amino-4H-chromen-4-yl phosphonate derivatives has been accomplished by the condensation of salicylaldehyde, malononitrile/ethylcyanoacetate and triethyl phosphite/trimethyl phosphite in the presence of molecular iodine as catalyst in water at room temperature. All the reactions were very clean and the products were obtained in very good to excellent...

2017
Mattias Anderson

Amine transaminases are enzymes that catalyze the mild and selective formation of primary amines, which are useful building blocks for biologically active compounds and natural products. In order to make the production of these kinds of compounds more efficient from both a practical and an environmental point of view, amine transaminases were incorporated into multi-step one-pot reactions. With...

2012
Rajkumar Jeyachandran Harish Kumar Potukuchi Lutz Ackermann

Step-economical syntheses of annulated 1,2,3-triazoles were accomplished through copper-catalyzed intramolecular direct arylations in sustainable one-pot reactions. Thus, catalyzed cascade reactions involving [3 + 2]-azide-alkyne cycloadditions (CuAAC) and C-H bond functionalizations provided direct access to fully substituted 1,2,3-triazoles with excellent chemo- and regioselectivities. Likewi...

2008
Pontus Lundberg Craig J. Hawker Anders Hult Michael Malkoch James L. Hedrick

Presently, the majority of reports deal with combining chemical reactions, in a stepwise fashion, to obtain well-defined polymers. In the future, chemists need to address new challenges such as increase in the range of available efficient reactions, developing libraries of compatible one-pot reactions, and the application of obtained materials in key industries. Indeed, the rising importance of...

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