Hydride-induced novel cyclization of dienedinitriles leading to multifunctionalized cyclopentadienes.
Zhang, Hui-Jun; Meng, Tianhao; Demerseman, Bernard; Bruneau, Christian; Xi, Zhenfeng; Organic letters 11 (2009) 4458–4461; doi:10.1021/ol901840c

data_1504172
_publ_section_title
;
 Hydride-induced novel cyclization of dienedinitriles leading to
 multifunctionalized cyclopentadienes.
;
_journal_issue                   19
_journal_name_full               'Organic letters'
_journal_page_first              4458
_journal_page_last               4461
_journal_paper_doi               10.1021/ol901840c
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C13 H20 N2 Si'
_chemical_formula_weight         232.40
_chemical_name_systematic
; 
 ? 
;
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_symmetry_space_group_name_Hall  'P 2c -2n'
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_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            4
_cell_length_a                   10.600(2)
_cell_length_b                   14.995(3)
_cell_length_c                   8.7526(18)
_cell_measurement_reflns_used    9379
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.35
_cell_volume                     1391.2(5)
_computing_cell_refinement       Rapid-AUTO
_computing_data_collection       'Rapid-AUTO (Rigaku,2000)'
_computing_data_reduction        'CrystalStructure (Rigaku/MSC,2000)'
_computing_molecular_graphics    'Siemens SHELXTL V4.2,(Sheldrick,1990)'
_computing_publication_material  SHELXL-97,(Sheldrick,1997)
_computing_structure_refinement  SHELXL-97,(Sheldrick,1997)
_computing_structure_solution    SHELXS-97,(Sheldrick,1997)
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Rigaku RAXIS RAPID IP'
_diffrn_measurement_method       \W
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_av_sigmaI/netI    0.1097
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            9379
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.35
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.147
_exptl_absorpt_correction_T_max  0.9712
_exptl_absorpt_correction_T_min  0.9435
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
; 
                                  HIGASHI, T. (1995). Abscor-Empirical 
                                  Absorption Correction based on Fourier 
                                  Series Approximation. 
                                  Rigaku Corporation,Tokyo,Japan. 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.110
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             504
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.324
_refine_diff_density_min         -0.280
_refine_diff_density_rms         0.063
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.2(5)
_refine_ls_extinction_coef       0.0035(19)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     149
_refine_ls_number_reflns         1686
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1428
_refine_ls_R_factor_gt           0.0752
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0700P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1755
_refine_ls_wR_factor_ref         0.1954
_reflns_number_gt                663
_reflns_number_total             1686
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol901840c_si_002.cif
_cod_data_source_block           zhj2b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' 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_sg_symbol_H-M      Pna2(1)
_cod_database_code               1504172