An efficient protocol for the evaluation of catalysts for the asymmetric Morita-Baylis-Hillman (MBH) reaction was developed. By mass spectrometric back-reaction screening of quasi-enantiomeric MBH products, an efficient bifunctional phosphine catalyst was identified that outperforms literature-known catalysts in the MBH reaction of methyl acrylate with aldehydes. The close match between the selectivities measured for the forward and back reaction and kinetic measurements provided strong evidence that the aldol step and not the subsequent proton transfer is rate- and enantioselectivity-determining.
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Objective Outpatient parenteral antimicrobial therapy (OPAT) provides opportunities for improved cost savings, but in the UK, implementation...
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Abstract Purpose Overcoming the flaws of current data management conditions in head and neck oncology could enable integrated informatio...
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http://orl-agios.blogspot.com/2017/06/the-preclinical-anticancer-effect-of.html Flavonoids present in foods were considered non-absorbable b...
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Universal newborn hearing screening (UNHS) has become the standard of care in many countries. The aim of this study was to evaluate the resu...
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Geographic region: Does it matter in cutaneous melanoma of the head and neck? Laryngoscope. 2017 Jun 05;: Authors: Kılıç S, Unsal AA,...
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The overall objective of the guideline is to provide up-to-date, evidence-based recommendations for the management of lichen sclerosus (LS)...
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Abstract The head-mounted display (HMD) has the potential to improve the quality of ultrasound-guided procedures. The aim of this non-clin...
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