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Theoretical characterization of molecular complexes formed between triplet vinyl nitrene and lewis acids
(Springer, 2015)
In the current work, the complexes formed between triplet vinyl nitrene (3CH2CHN) and some Lewis acids YA (LiH, LiF, BeH2, BeF2, BH3, BF3, ClH, ClF, HCl, HF) have been investigated through calculations of the electronic ...
Catalytic stereoselective alkene aziridination with sulfonimidamides
(Pergamon-Elsevier Science Ltd, 2010-06)
Diastereoselective copper-catalyzed alkene aziridination has been investigated using chiral nitrenes generated from sulfonimidamides in the presence of an iodine(III) oxidant. Starting from a stoichiometric amount of the ...
Late‐stage Rh(II)‐catalyzed titrene transfer for the synthesis of guaianolide analogs with enhanced antiproliferative activity
(Wiley VCH Verlag, 2021-03)
A set of new guaianolide derivatives (1–9) was obtained from ludartin, achalensolide, and 11,13-dihydroachalensolide by application of catalytic nitrene transfer reactions. Intermolecular nitrene C(sp3)−H insertions led ...
Dirhodium(II)-Mediated Alkene Epoxidation with Iodine(III) Oxidants
(Wiley VCH Verlag, 2018-11-01)
Dirhodium(II) complexes and iodine(III) oxidants have found useful applications in synthetic nitrene chemistry. In this study, the combination of the dirhodium(II) complex Rh2(tpa)4 (tpa = triphenylacetate) with the ...
Synthesis of 6,19-sulfamidate bridged pregnanes
(American Chemical Society, 2005-10)
Conformationally restrained substituted pregnane-20-one derivatives were obtained by an intramolecular nitrene addition onto a C-5/C-6 double bond involving a tethered C-19 sulfamoyl moiety. The resulting aziridine underwent ...
Late-stage C–H amination of abietane diterpenoids
(Royal Society of Chemistry, 2019-04)
This study aims at highlighting the synthetic versatility of the rhodium-catalyzed C-H amination reactions using iodine(iii) oxidants for the late-stage functionalization of natural products. Inter-and intramolecular nitrene ...
Chlorodifluoroacetyl isocyanate, ClF2CC(O)NCO: Preparation and structural and spectroscopic studies
(American Chemical Society, 2012-11-01)
Chlorodifluoroacetyl isocyanate, ClF2CC(O)NCO, was prepared by the reaction of ClF2CC(O)Cl with excess of AgNCO. The colorless compound melts at -83 °C and the vapor pressure follows the equation ln p = -3868.3 (1/T) + ...
Metodologias sintéticas envolvendo reações fotoquímicas e eletroquímicas em condições de batelada e fluxo contínuo
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Química - PPGQCâmpus São Carlos, 2023-04-26)
SYNTHETIC METHODOLOGIES INVOLVING PHOTOCHEMICAL AND ELECTROCHEMICAL REACTIONS IN BOTH BATCH AND CONTINUOUS FLOW CONDITIONS. Initially (Chapter 1), general aspects of the studied reactions were presented and in the chapter ...