Hydroxyproline-Derived Pseudoenantiomeric [2.2.1] Bicyclic Phosphines: Asymmetric Synthesis of (+)- and (-)-Pyrrolines.
Henry, Christopher E.; Xu, Qihai; Fan, Yi Chiao; Martin, Tioga J.; Belding, Lee; Dudding, Travis; Kwon, Ohyun; Journal of the American Chemical Society 136 (2014) 11890–; doi:10.1021/ja505592h

data_4122421
_publ_section_title
;
 Hydroxyproline-Derived Pseudoenantiomeric [2.2.1] Bicyclic Phosphines:
 Asymmetric Synthesis of (+)- and (-)-Pyrrolines.
;
_journal_issue                   34
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11890
_journal_paper_doi               10.1021/ja505592h
_journal_volume                  136
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C20 H21 N O4 S'
_chemical_formula_sum            'C20 H21 N O4 S'
_chemical_formula_weight         371.44
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                   6.4382(12)
_cell_length_b                   13.849(3)
_cell_length_c                   21.164(4)
_cell_measurement_reflns_used    8699
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.44
_cell_measurement_theta_min      3.99
_cell_volume                     1887.0(6)
_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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_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  0.0561
_diffrn_reflns_av_sigmaI/netI    0.0416
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            25786
_diffrn_reflns_theta_full        30.10
_diffrn_reflns_theta_max         30.10
_diffrn_reflns_theta_min         3.99
_exptl_absorpt_coefficient_mu    0.196
_exptl_absorpt_correction_T_max  0.9807
_exptl_absorpt_correction_T_min  0.9120
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (bruker)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.307
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.504
_refine_diff_density_min         -0.329
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.07(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     282
_refine_ls_number_reflns         5437
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0419
_refine_ls_R_factor_gt           0.0352
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0439P)^2^+0.3142P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0862
_refine_ls_wR_factor_ref         0.0897
_reflns_number_gt                4916
_reflns_number_total             5437
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja505592h_si_005.cif
_cod_data_source_block           kw1210s
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/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 

 Adding full bibliography for 4122420--4122424.cif.
;
_cod_original_cell_volume        1886.9(6)
_cod_database_code               4122421