Diastereoselective synthesis and spin-dependent photodecarbonylation of di(3-phenyl-2-pyrrolidinon-3-yl)ketones: synthesis of nonadjacent and adjacent stereogenic quaternary centers
Resendiz, Marino J. E.; Natarajan, Arunkumar; Garcia-Garibay, Miguel A.; Chemical Communications (Cambridge, United Kingdom)  (2008) 193–195; doi:10.1039/b711786h

data_7102789
_publ_section_title
;
 Diastereoselective synthesis and spin-dependent photodecarbonylation
 of di(3-phenyl-2-pyrrolidinon-3-yl)ketones: synthesis of nonadjacent
 and adjacent stereogenic quaternary centers
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   2
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              193
_journal_page_last               195
_journal_paper_doi               10.1039/b711786h
_journal_year                    2008
_chemical_formula_moiety         'C37 H36 N2 O5'
_chemical_formula_sum            'C37 H36 N2 O5'
_chemical_formula_weight         588.68
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 104.8700(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.4881(18)
_cell_length_b                   10.8020(12)
_cell_length_c                   19.017(2)
_cell_measurement_reflns_used    5227
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      24.58
_cell_measurement_theta_min      3.823
_cell_volume                     3075.0(6)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega and phi scan'
_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  0.0364
_diffrn_reflns_av_sigmaI/netI    0.0359
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            26136
_diffrn_reflns_theta_full        27.89
_diffrn_reflns_theta_max         27.89
_diffrn_reflns_theta_min         3.76
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.9958
_exptl_absorpt_correction_T_min  0.9167
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Bruker)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       hexagon
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.307
_refine_diff_density_min         -0.183
_refine_diff_density_rms         0.030
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.998
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     399
_refine_ls_number_reflns         7275
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.0901
_refine_ls_R_factor_gt           0.0447
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0459P)^2^+0.5930P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0994
_refine_ls_wR_factor_ref         0.1190
_reflns_number_gt                4340
_reflns_number_total             7275
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b711786h.txt
_cod_data_source_block           gg5707s
_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/c'
_cod_database_code               7102789