One-Step Route to 2,3-Diaminopyrroles Using a Titanium-Catalyzed Four-Component Coupling
Barnea, Eyal; Majumder, Supriyo; Staples, Richard J.; Odom, Aaron L.; Organometallics 28 (2009) 3876–; doi:10.1021/om9001928

data_4069444
_publ_section_title
;
 One-Step Route to 2,3-Diaminopyrroles Using a Titanium-Catalyzed
 Four-Component Coupling
;
_journal_issue                   13
_journal_name_full               Organometallics
_journal_page_first              3876
_journal_paper_doi               10.1021/om9001928
_journal_volume                  28
_journal_year                    2009
_chemical_formula_moiety         'C21 H35 N3 Si'
_chemical_formula_sum            'C21 H35 N3 Si'
_chemical_formula_weight         357.61
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 98.418(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0890(15)
_cell_length_b                   19.405(4)
_cell_length_c                   16.243(3)
_cell_measurement_reflns_used    6074
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.58
_cell_measurement_theta_min      2.45
_cell_volume                     2210.3(8)
_computing_cell_refinement       'APEX2 (BRUKER, V2.1-0, 2006)'
_computing_data_collection       'COSMO (BRUKER, V2.0, 2006)'
_computing_data_reduction        'SAINT (BRUKER, V7.34A, 2006)'
_computing_molecular_graphics
'SHELXTL (Sheldrick, Acta Cryst. A64 2008, 112-122)'
_computing_publication_material
'SHELXTL (Sheldrick, Acta Cryst. A64 2008, 112-122)'
_computing_structure_refinement
'SHELXL (Sheldrick, Acta Cryst. A64 2008, 112-122)'
_computing_structure_solution
'SHELXS (Sheldrick, Acta Cryst. A64 2008, 112-122)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 836.6
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       '\w,and/f 0.5 deg'
_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  0.0686
_diffrn_reflns_av_sigmaI/netI    0.0863
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            17510
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.59
_diffrn_reflns_theta_min         1.65
_exptl_absorpt_coefficient_mu    0.114
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6473
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.075
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.375
_exptl_crystal_size_mid          0.125
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.551
_refine_diff_density_min         -0.460
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.142
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         4941
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.142
_refine_ls_R_factor_all          0.1370
_refine_ls_R_factor_gt           0.0789
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0509P)^2^+4.8510P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1958
_refine_ls_wR_factor_ref         0.2159
_reflns_number_gt                2880
_reflns_number_total             4941
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om9001928_si_002.cif
_cod_data_source_block           4cctmsphac
_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 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        2210.4(8)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4069444