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Articles by Mostafa Amer
Asymmetric Hydride Shift Reactions Catalyzed by Chiral Aluminium Complexes
We recently reported an aluminium promoted intramolecular 1,5-hydride shift/aldol cascade reaction that transformed substituted tetrahydropyran (THP) substrates 1 into heavily functionalized and synthetically useful cyclohexenes 2 (for an outline of the mechanism see A→B, Figure 1a).[1] The development of an asymmetric version of this sequence is a key direction that we wished to follow in order to enhance and expand this methodology.
Dynamic Kinetic Resolution Allows Control of Remote Stereochemistry in Asymmetric Hydrogen Borrowing Alkylation
Hydrogen borrowing (HB) catalysis has recently emerged as a powerful method for C−C bond formation enabling use of alcohols as electrophiles via a temporary change in oxidation state.1 Importantly, this negates the use of toxic alkyl halides and pseudo-halides.
Prediction of Degradation Profiles for Various Sartans under Solvent-Free Mechanochemical Conditions
Calibration of Ring Oscillator-Based Integrated Temperature Sensors for Power Management Systems
1. Introduction Integrated temperature sensors, notably in CMOS technology, have become indispensable in modern electronics for their compact size, low power consumption, and seamless integration with system-on-chip (SoC) designs. These sensors are renowned for their accuracy, sensitivity, and broad operational range, exhibiting a linear response across diverse applications, from consumer electronics to automotive and industrial monitoring systems.
Electro-mechanochemical approach towards chloro sulfoximi-dations of allenes under solvent-free conditions in a ball mill
Electro-mechanochemical approach towards chloro sulfoximi-dations of allenes under solvent-free conditions in a ball mill Mostafa Amer, Renè Hommelsheim, Christian Schumacher, Deshen Kong and Carsten Bolm Abstract An electro-mechanochemical protocol for the synthesis of vinylic sulfoximines has been developed. Utilizing mechanochemically strained BaTiO3 nanoparticles, the catalytic active system is generated in situ by the reduction of copper(II) chloride.
Stainless steel-initiated chloro sulfoximidations of allenes under solvent-free conditions in a ball mill
Stainless steel-initiated chloro sulfoximidations of allenes under solvent-free conditions in a ball mill You have access to this article Please wait while we load your content... Something went wrong. Try again?
Asymmetric and Geometry‐Selective α‐Alkenylation of α‐Amino Acids
The full text of this article hosted at iucr.org is unavailable due to technical difficulties. Communication Asymmetric and Geometry‐Selective α‐Alkenylation of α‐Amino Acids Prof. Jonathan Clayden PDF PDF Share Abstract Both E‐ and Z‐N′‐alkenyl urea derivatives of imidazolidinones may be formed selectively from enantiopure α‐amino acids.
Effect of Inhaled β2-Agonist on Exhaled Nitric Oxide in Chronic Obstructive Pulmonary Disease
The fractional exhaled nitric oxide measured at an expiratory flow of 50mL/s (FE 50) is a marker of airway inflammation, and high levels are associated with greater response to steroid treatment. In asthma, FE 50 increases with bronchodilation and decreases with bronchoconstriction, the latter potentially causing an underestimate of the degree of airway inflammation when asthma worsens. It is unknown whether the same effect occurs in chronic obstructive lung disease (COPD).
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