Effect of Chain Length on Radical to Carbanion Cyclo-Coupling of Bromoaryl Alkyl-Linked Oxazolines: 1,3-Areneotropic Migration of Oxazolines
Laura J. Marshall; Mark D. Roydhouse; Alexandra M. Z. Slawin; John C. Walton; Journal of Organic Chemistry 72 (2007) 898–911; doi:10.1021/jo0620720

data_4022665
_publ_section_title
;
 Effect of Chain Length on Radical to Carbanion Cyclo-Coupling of
 Bromoaryl Alkyl-Linked Oxazolines: 1,3-Areneotropic Migration of
 Oxazolines
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_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              898
_journal_page_last               911
_journal_paper_doi               10.1021/jo0620720
_journal_volume                  72
_journal_year                    2007
_chemical_formula_moiety         'C21 H25 N O2'
_chemical_formula_sum            'C21 H25 N O2'
_chemical_formula_weight         323.42
_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                 107.562(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.408(4)
_cell_length_b                   6.736(2)
_cell_length_c                   12.400(4)
_cell_measurement_reflns_used    106
_cell_measurement_temperature    125(2)
_cell_measurement_theta_max      28
_cell_measurement_theta_min      12
_cell_volume                     908.5(5)
_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 0.83
_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  0.0575
_diffrn_reflns_av_sigmaI/netI    0.1504
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5446
_diffrn_reflns_theta_full        25.39
_diffrn_reflns_theta_max         25.39
_diffrn_reflns_theta_min         1.87
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.828257
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.182
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             348
_exptl_crystal_size_max          .13
_exptl_crystal_size_mid          .05
_exptl_crystal_size_min          .03
_refine_diff_density_max         0.180
_refine_diff_density_min         -0.196
_refine_diff_density_rms         0.047
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(2)
_refine_ls_extinction_coef       0.019(3)
_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   0.886
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         2993
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.885
_refine_ls_R_factor_all          0.1311
_refine_ls_R_factor_gt           0.0625
_refine_ls_shift/su_max          0.105
_refine_ls_shift/su_mean         0.008
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0592P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1111
_refine_ls_wR_factor_ref         0.1293
_reflns_number_gt                1684
_reflns_number_total             2993
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo0620720si20061006_065451.cif
_cod_data_source_block           mrjw1
_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4022665