Results 31 to 40 of about 51,426 (242)

The diastereoselective Meth-Cohn epoxidation of camphor-derived vinyl sulfones [PDF]

, 2012
Some camphor-derived vinyl sulfones bearing oxygen functionality at the allylic position have been synthesized and their nucleophilic epoxidation reactions under Meth-Cohn conditions have been explored.
Adam, Adamczyk, Adams, Aggarwal, Alba, Armstrong, Armstrong, Ashwell, Ashwell, Back, Bailey, Bos, Bos, Briggs, Briggs, Bueno, Bäckvall, Chemla, Christopher Meadows, Clark, Craig, Craig, Culvenor, David H. Grayson, El-Awa, Evans, Evans, Evans, Evans, Evans, Evans, Fernandez de la Pradilla, Fernandez de la Pradilla, Fernandez de la Pradilla, Fernandez de la Pradilla, Fernandez de la Pradilla, Forristal, Frank W. Lewis, Garrabou, Gnas, Gordon Hill, Hernandez, Hewkin, Jackson, Jackson, Jackson, Jackson, Jackson, Jackson, Jackson, Kurt Dolence, Lacour, Lacour, Langlois, Lewis, Lewis, Li, Liu, Llamas, Magnus, Mauleon, McLaughlin, Meggers, Meth-Cohn, Milen, Mori, Mosse, Moure, Narasimha Rao, Nishide, Node, Oppolzer, Pellissier, Pinho e Melo, Pinho e Melo, Polywka, Roos, Satoh, Shu, Simpkins, Solladié-Cavallo, Solladié-Cavallo, Sulzer-Mosse, Toru, Trost, Tsogoeva, Van Rheenen, Weitz, Wessel, Yoo, Zhu, Zwanenburg   +91 more
core   +1 more source

Flexible access to conformationally-locked bicyclic morpholines [PDF]

, 2013
A preparatively accessible route to a series of conformationally-locked bicyclic morpholines has been developed. This flexible approach allows for diversification in order for a small array of lead-like scaffolds to be synthesised from readily available ...
Brawn, Brice, Chen, Dow, Duncan M. Gill, Furber, Garrison, Ito, John A. Parkinson, Kilonda, Laura C. Paterson, Long, MacLellan, Rachael Bogacki, Sayago, Scott Lamont, Smith, Still, Timmer, William J. Kerr, Xiao   +20 more
core   +1 more source

Diastereoselective three-component synthesis of beta-amino carbonyl compounds using diazo compounds, boranes, and acyl imines under catalyst-free conditions [PDF]

, 2014
Diazo compounds, boranes, and acyl imines undergo a three-component Mannich condensation reaction under catalyst-free conditions to give the anti β-amino carbonyl compounds in high diastereoselectivity.
Luan, Yi, Schaus, Scott E., Wang, Ge, Yu, Jie, Zhang, Xiaowei   +4 more
core   +1 more source

Three-component coupling of aryl iodides, allenes, and aldehydes catalyzed by a Co/Cr-hybrid catalyst

Beilstein Journal of Organic Chemistry, 2018
The cobalt/chromium-catalyzed three-component coupling of aryl iodides, allenes, and aldehydes has been developed to afford multi-substituted homoallylic alcohols in a diastereoselective manner.
Kimihiro Komeyama, Shunsuke Sakiyama, Kento Iwashita, Itaru Osaka, Ken Takaki   +4 more
doaj   +1 more source

Stereochemical assignment of the protein-protein interaction inhibitor JBIR-22 by total synthesis [PDF]

, 2015
The authors acknowledge the EPSRC and Cancer Research UK (CRUK Grant No. C21383/A6950) for funding this research.Recent reports have highlighted the biological activity associated with a sub-family of the tetramic acid class of natural products.
Healy, Alan, Izumikawa, Miho, Shin-ya, Kazuo, Slawin, Alexandra Martha Zoya, Westwood, Nicholas James   +4 more
core   +1 more source

Synthesis of aza-rocaglates via ESIPT-mediated (3+2) photocycloaddition [PDF]

, 2016
Synthesis of aza-rocaglates, nitrogen-containing analogues of the rocaglate natural products, is reported. The route features ESIPT-mediated (3+2) photocycloaddition of 1-alkyl-2-aryl-3-hydroxyquinolinones with the dipolarophile methyl cinnamate.
Cencic, Regina, Pelletier, Jerry, Porco, John A., Wang, Wenyu, Whitesell, Luke   +4 more
core   +1 more source

A Diastereoselective Synthetic Approach towards the Synthesis of Berkeleylactone F and Its 4-epi-Derivative

SynOpen, 2020
A diastereoselective approach to the synthesis of berkeleylactone F is presented. The synthetic strategy is initiated with commercially available (R)-glycidol, 1,6-heptadiyne, and (R)-(+)-methyl lactate.
Srijana Subba, Sumit Saha, Susanta Mandal   +2 more
doaj   +1 more source

Nickel-Catalyzed Kumada Cross-Coupling Reactions of Benzylic Sulfonamides

Molecules, 2021
Herein, we report a Kumada cross-coupling reaction of benzylic sulfonamides. The scope of the transformation includes acyclic and cyclic sulfonamide precursors that cleanly produce highly substituted acyclic fragments.
Kirsten A. Hewitt, Claire A. Herbert, Alissa C. Matus, Elizabeth R. Jarvo   +3 more
doaj   +1 more source

Terminal substituent effects on the reactivity, thermodynamics, and stereoselectivity of the 8π-6π electrocyclization cascades of 1,3,5,7-tetraenes. [PDF]

, 2014
M06-2X/6-31+G(d,p) computations are reported for the 8π-6π electrocyclization cascades of 1,3,5,7-tetraenes. The rate-determining step for these cascades is typically the second (6π) ring closure.
Houk, KN, Patel, Ashay
core   +2 more sources

Diastereoselective Formation of Complexed Methylenediphosphiranes [PDF]

Organometallics, 2008
Stable syn-substituted methylenediphosphirane complexes are obtained from the reaction of transient, electrophilic phosphinidenes [R-P=W(CO)
Jansen, Helen, Rosenthal, A.J., Slootweg, J.C., Ehlers, A.W., Lutz, M., Spek, A.L., Lammertsma, K.   +6 more
openaire   +5 more sources