We sill continue to develop new and general methods for the synthesis of amines, in particular biological active amine, the chemo- and stereoselective reduction of N-iminoderivatives with organometallic reagents. The synthesis of new N-silyl- N-silyloxi-, N-boryloxyimine as well as their reduction with achiral and chiral organoborane reagents to obtain primary amines, is proposed. The chemistry of the N-acyl- and N-silylimines and their corresponding enamines will be more deeply studied as an alternative rout for the preparation of amino alcohols by the hydroboration reaction, an approach which has received only limited attention. It is planned to continue to investigate the Beta-alkylation and silylation of the N-substituted imino derivatives, which offer the possibility of important Beta-substituted amines and ketones. The planned strategies will be used for the synthesis of important pharmacological compounds such as sympathomimetic agents such as alpha- and Beta-phenylethyl amines and; phenylisopropylamines.

Project Start
Project End
Budget Start
Budget End
Support Year
12
Fiscal Year
1994
Total Cost
Indirect Cost
Name
University of Puerto Rico at Humacao
Department
Type
DUNS #
City
Humacao
State
PR
Country
United States
Zip Code
00791
Gawronski, Katerina A B; Kim, Junhyong (2017) Single cell transcriptomics of noncoding RNAs and their cell-specificity. Wiley Interdiscip Rev RNA 8:
Falk, Samantha J; Lee, Jaehyoun; Sekulic, Nikolina et al. (2016) CENP-C directs a structural transition of CENP-A nucleosomes mainly through sliding of DNA gyres. Nat Struct Mol Biol 23:204-208
Falk, Samantha J; Guo, Lucie Y; Sekulic, Nikolina et al. (2015) Chromosomes. CENP-C reshapes and stabilizes CENP-A nucleosomes at the centromere. Science 348:699-703
Sanchez-Cruz, Pedro; Santos, Areli; Diaz, Stephany et al. (2014) Metal-independent reduction of hydrogen peroxide by semiquinones. Chem Res Toxicol 27:1380-6
Piñero-Santiago, Luis E; García, Carmelo; Lhiaubet-Vallet, Virginie et al. (2013) Photooxidation mechanism of levomepromazine in different solvents. Photochem Photobiol 89:1479-89
Bryant, Jessica M; Meyer-Ficca, Mirella L; Dang, Vanessa M et al. (2013) Separation of spermatogenic cell types using STA-PUT velocity sedimentation. J Vis Exp :
Castillo, Betzaida; Bromberg, Lev; López, Xaira et al. (2012) Intracellular Delivery of siRNA by Polycationic Superparamagnetic Nanoparticles. J Drug Deliv 2012:218940
Sanchez-Cruz, Pedro; Dejesus-Andino, Francisco; Alegria, Antonio E (2012) Roles of hydrophilicities and hydrophobicities of dye and sacrificial electron donor on the photochemical pathway. J Photochem Photobiol A Chem 236:54-60
Stepanenko, Viatcheslav; de Jesús, Melvin; Garcia, Carmelo et al. (2012) Synthesis and stability of new spiroaminoborate esters. Tetrahedron Lett 53:910-913
Bansal, Vibha; Delgado, Yamixa; Legault, Marc et al. (2012) Low operational stability of enzymes in dry organic solvents: changes in the active site might affect catalysis. Molecules 17:1870-82

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