Synthesis of Bis(amino)pyridines by the Stepwise Alkylation of Bis(imino)pyridines: An Unexpected and Selective Alkylation of the Aminoiminopyridine by AlMe3
Tay, Boon-Ying; Wang, Cun; Chia, Sze-Chen; Stubbs, Ludger P.; Wong, Pui-Kwan; van Meurs, Martin; Organometallics 30 (2011) 6028–; doi:10.1021/om200899f

data_4065518
_publ_section_title
;
 Synthesis of Bis(amino)pyridines by the Stepwise Alkylation of
 Bis(imino)pyridines: An Unexpected and Selective Alkylation of the
 Aminoiminopyridine by AlMe3
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              6028
_journal_paper_doi               10.1021/om200899f
_journal_volume                  30
_journal_year                    2011
_chemical_formula_sum            'C26 H31 N3'
_chemical_formula_weight         385.54
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 95.05(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   24.660(5)
_cell_length_b                   6.3263(13)
_cell_length_c                   14.002(3)
_cell_measurement_reflns_used    5952
_cell_measurement_temperature    110.1500
_cell_measurement_theta_max      31.1280
_cell_measurement_theta_min      1.6143
_cell_volume                     2175.9(8)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      110.1500
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Saturn70 (2x2 bin mode)'
_diffrn_measurement_method       '\w scans'
_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  0.0450
_diffrn_reflns_av_sigmaI/netI    0.0495
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            16845
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.177
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.4400
_exptl_crystal_size_mid          0.4400
_exptl_crystal_size_min          0.1100
_refine_diff_density_max         0.328
_refine_diff_density_min         -0.243
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.232
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     273
_refine_ls_number_reflns         5399
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.232
_refine_ls_R_factor_all          0.1188
_refine_ls_R_factor_gt           0.0989
_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^)+(0.0988P)^2^+1.1871P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2320
_refine_ls_wR_factor_ref         0.2505
_reflns_number_gt                4490
_reflns_number_total             5399
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200899f_si_002.cif
_cod_data_source_block           shelxt
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4065518