Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Gregory R. Boyce"'
Publikováno v:
The Journal of Organic Chemistry. 87:13367-13374
Funding: Florida Gulf Coast University; University of St Andrews; UK Engineering and Physical Sciences Research Council - EP/J018139/1, EP/L016419/1, EP/V051423/1; Leverhulme Trust - ECF-2014-005. The use of 2-carboxyphenylboronic acid (5 mol %) and
Autor:
Jiufeng Wu, Claire M. Young, Amy A. Watts, Alexandra M. Z. Slawin, Gregory R. Boyce, Michael Bühl, Andrew D. Smith
Publikováno v:
Organic letters. 24(22)
MB thanks EaStCHEM and the School of Chemistry for support. An enantioselective Michael addition of malonates to α,β-unsaturated para-nitrophenyl esters was achieved using the Lewis basic isothiourea HyperBTM, giving excellent levels of product ena
Publikováno v:
Journal of Chemical Education. 97:4127-4132
The synthesis of a commercial fragrance, methyl cinnamate, via Fischer esterification was evaluated for use as a second-year organic chemistry course. The experiment utilizes trans-cinnamic acid, a...
Publikováno v:
Organic & Biomolecular Chemistry. 19:8018-8020
The stereocontrolled three-step synthesis of either enantiomer of α-thujone from commercially available 3-methyl-1-butyne is described. The enantioselectivity originates from a Brown crotylation which is then conferred to the all-carbon quaternary c
Publikováno v:
New Journal of Chemistry. 42:15538-15540
The synthesis of pyridoxal acetal salts and the controlled-release of the alcohols in the presence of neutral pH water is described. The rate of release was monitored by 1H NMR and was found to be dependent on the concentration of water in the sample
Autor:
Gregory R. Boyce, Jeffrey S. Johnson
Publikováno v:
The Journal of Organic Chemistry. 81:1712-1717
A diastereoselective auxiliary-mediated vinylation/[1,2]-Brook rearrangement/vinylogous Michael cascade of silyl glyoximide, vinylmagnesium bromide, and nitroalkenes is described. The reaction occurs with complete regio- and diastereocontrol in good
Publikováno v:
Tetrahedron Letters
Graphical abstract
Highlights • A catalyst-free regioselective etherification of pyridoxine was described. • The natural product, ginkgotoxin, was synthesized using this methodology in a 57% yield. • The steric and electronic parameters of
Highlights • A catalyst-free regioselective etherification of pyridoxine was described. • The natural product, ginkgotoxin, was synthesized using this methodology in a 57% yield. • The steric and electronic parameters of
Autor:
Jeffrey S. Johnson, Gregory R. Boyce
Publikováno v:
ChemInform. 47
A diastereoselective auxiliary-mediated vinylation/[1,2]-Brook rearrangement/vinylogous Michael cascade of silyl glyoximide, vinylmagnesium bromide, and nitroalkenes is described. The reaction occurs with complete regio- and diastereocontrol in good
Autor:
Kristin A. Anderson, Jessica A. Yazarians, Chelcie C. Almeyda, Gregory R. Boyce, Jack D. Williams
Publikováno v:
Journal of agricultural and food chemistry. 64(21)
The discovery of the (+)-α-thujone and (−)-β-thujone stereoisomers in the essential oil of sage (Salvia officinalis L.) and dietary supplements is documented for the first time. The detection was accomplished using a chiral resolution protocol of