Aziridinyl anions from a chiral, nonracemic 2-isopropylidineaziridine: surprisingly diastereoselective alkylation reactions
Hayes, J. F.; Prévost, N.; Prokeš, I.; Shipman, M.; Slawin, A. M. Z.; Twin, H.; Chemical Communications (Cambridge, United Kingdom)  (2003) 1344–1345; doi:10.1039/b303252c

data_7113735
_publ_section_title
;
 Aziridinyl anions from a chiral, nonracemic 2-isopropylidineaziridine:
 surprisingly diastereoselective alkylation reactions
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   12
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              1344
_journal_page_last               1345
_journal_paper_doi               10.1039/b303252c
_journal_year                    2003
_chemical_formula_moiety         'C26 H27 N O'
_chemical_formula_sum            'C26 H27 N O'
_chemical_formula_weight         369.49
_space_group_IT_number           18
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2 2ab'
_symmetry_space_group_name_H-M   'P 21 21 2'
_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                   16.847(3)
_cell_length_b                   22.696(4)
_cell_length_c                   5.6162(10)
_cell_measurement_reflns_used    33
_cell_measurement_temperature    125(2)
_cell_measurement_theta_max      168
_cell_measurement_theta_min      12
_cell_volume                     2147.4(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      125(2)
_diffrn_detector_area_resol_mean 0.9
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.1101
_diffrn_reflns_av_sigmaI/netI    0.1948
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            9253
_diffrn_reflns_theta_full        23.28
_diffrn_reflns_theta_max         23.28
_diffrn_reflns_theta_min         1.51
_diffrn_standards_decay_%        -
_diffrn_standards_interval_count -
_diffrn_standards_interval_time  -
_diffrn_standards_number         -
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.856122
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   -
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.143
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             792
_exptl_crystal_size_max          .15
_exptl_crystal_size_mid          .05
_exptl_crystal_size_min          .05
_refine_diff_density_max         0.144
_refine_diff_density_min         -0.140
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1(2)
_refine_ls_extinction_coef       0.0136(7)
_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   0.738
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         3044
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.738
_refine_ls_R_factor_all          0.1290
_refine_ls_R_factor_gt           0.0429
_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^)+(0.0177P)^2^+0.0000P] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0526
_refine_ls_wR_factor_ref         0.0660
_reflns_number_gt                1485
_reflns_number_total             3044
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7103713
_cod_data_source_file            b303252c.txt
_cod_data_source_block           2g
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'multiscan'
changed to 'multi-scan' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value '-' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        2147.3(7)
_cod_original_sg_symbol_H-M      P2(1)2(1)2
_cod_database_code               7113735