Regioselective cobalt-catalyzed formation of bicyclic 3- and 4-aminopyridines.
Garcia, Pierre; Evanno, Yannick; George, Pascal; Sevrin, Mireille; Ricci, Gino; Malacria, Max; Aubert, Corinne; Gandon, Vincent; Organic letters 13 (2011) 2030–2033; doi:10.1021/ol200417p

data_1502090
_publ_section_title
;
 Regioselective cobalt-catalyzed formation of bicyclic 3- and
 4-aminopyridines.
;
_journal_issue                   8
_journal_name_full               'Organic letters'
_journal_page_first              2030
_journal_page_last               2033
_journal_paper_doi               10.1021/ol200417p
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'C25 H27 F3 N2 O2 S Si'
_chemical_formula_sum            'C25 H27 F3 N2 O2 S Si'
_chemical_formula_weight         504.64
_chemical_name_systematic
;
1-tosyl-6-(4-(trifluoromethyl)phenyl)-8-(trimethylsilyl)-1,2,3,4-tetrahydro-1,7-naphthyridine
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   8.2616(8)
_cell_length_b                   18.2223(16)
_cell_length_c                   34.406(4)
_cell_measurement_reflns_used    107
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      18
_cell_measurement_theta_min      3
_cell_volume                     5179.7(9)
_computing_cell_refinement       'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs 1990-2000)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 1999)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-92 (Giacovazzo, 1993)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0617
_diffrn_reflns_av_sigmaI/netI    0.0438
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            34279
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.77
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.217
_exptl_absorpt_correction_T_max  0.968
_exptl_absorpt_correction_T_min  0.590
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.294
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2112
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.442
_refine_diff_density_min         -0.787
_refine_diff_density_rms         0.108
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     338
_refine_ls_number_reflns         4464
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0738
_refine_ls_R_factor_gt           0.0626
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1293P)^2^+1.1161P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1628
_refine_ls_wR_factor_ref         0.1761
_reflns_number_gt                3862
_reflns_number_total             4464
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ol200417p_si_001.cif
_cod_data_source_block           pg4-152b
_cod_database_code               1502090