Stereoselective Construction of 5-aza-Spiro[2,4] heptane Motif via Catalytic Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Ylides and Ethyl Cyclopropylidene Acetate
Tang-Lin Liu; zhao-lin He; Hai-Yan Tao; Yue-Peng Cai; Chun-Jiang Wang; Chem.Commun. 47 (2011) 2616–; doi:10.1039/c0cc04329j

data_7106022
_publ_section_title
;
 Stereoselective Construction of 5-aza-Spiro[2,4] heptane Motif via
 Catalytic Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Ylides and
 Ethyl Cyclopropylidene Acetate
;
_journal_name_full               Chem.Commun.
_journal_page_first              2616
_journal_paper_doi               10.1039/c0cc04329j
_journal_volume                  47
_journal_year                    2011
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C17 H20 Cl N O4'
_chemical_formula_sum            'C17 H20 Cl N O4'
_chemical_formula_weight         337.79
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 90.399(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.479(2)
_cell_length_b                   27.837(6)
_cell_length_c                   13.143(3)
_cell_measurement_reflns_used    4006
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      21.84
_cell_measurement_theta_min      2.27
_cell_volume                     3467.9(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_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      298(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0288
_diffrn_reflns_av_sigmaI/netI    0.0529
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            18013
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         1.71
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.239
_exptl_absorpt_correction_T_max  0.9650
_exptl_absorpt_correction_T_min  0.9405
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.294
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1424
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.278
_refine_diff_density_min         -0.225
_refine_diff_density_rms         0.033
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.11(7)
_refine_ls_extinction_coef       0.0049(5)
_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   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     838
_refine_ls_number_reflns         11687
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0944
_refine_ls_R_factor_gt           0.0514
_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^)+(0.0701P)^2^+0.1372P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1253
_refine_ls_wR_factor_ref         0.1506
_reflns_number_gt                7093
_reflns_number_total             11687
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CC04329J.TXT
_cod_data_source_block           c
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_cell_volume        3467.8(13)
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7106022