Enantioselective organocatalytic phospha-Michael reaction of α,β-unsaturated ketones
Wen, Shigang; Li, Pengfei; Wu, Haibo; Yu, Feng; Liang, Xinmiao; Ye, Jinxing; Chemical Communications 46 (2010) 4806–4808; doi:10.1039/c0cc00094a

data_7111651
_publ_section_title
;
 Enantioselective organocatalytic phospha-Michael reaction of
 \a,\b-unsaturated ketones
;
_journal_issue                   26
_journal_name_full               'Chemical Communications'
_journal_page_first              4806
_journal_page_last               4808
_journal_paper_doi               10.1039/c0cc00094a
_journal_volume                  46
_journal_year                    2010
_chemical_absolute_configuration R
_chemical_formula_moiety         'C19 H21 O2 P'
_chemical_formula_sum            'C19 H21 O2 P'
_chemical_formula_weight         312.33
_chemical_melting_point          ?
_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                   6.3328(2)
_cell_length_b                   9.3463(3)
_cell_length_c                   28.2033(10)
_cell_measurement_reflns_used    9992
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.40
_cell_measurement_theta_min      2.61
_cell_volume                     1669.30(10)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0257
_diffrn_reflns_av_sigmaI/netI    0.0172
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            19388
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.30
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    0.169
_exptl_absorpt_correction_T_max  0.9292
_exptl_absorpt_correction_T_min  0.9111
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.52
_exptl_crystal_size_min          0.44
_refine_diff_density_max         0.243
_refine_diff_density_min         -0.154
_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   0.03(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2953
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.0309
_refine_ls_R_factor_gt           0.0302
_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^)+(0.0411P)^2^+0.3067P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0775
_refine_ls_wR_factor_ref         0.0781
_reflns_number_gt                2896
_reflns_number_total             2953
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CC00094Asup1.cif
_cod_data_source_block           15ba
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

'_symmetry_cell_setting' value
'Orthorhombic' changed to 'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7111651