3-Pyrrolidinecarboxylic Acid for Direct Catalytic Asymmetricanti-Mannich-Type Reactions of Unmodified Ketones
Haile Zhang; Maria Mifsud; Fujie Tanaka; Carlos F. Barbas; Journal of the American Chemical Society 128 (2006) 9630–9631; doi:10.1021/ja062950b

data_4110776
_publ_section_title
;
 3-Pyrrolidinecarboxylic Acid for Direct Catalytic
 Asymmetricanti-Mannich-Type Reactions of Unmodified Ketones
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9630
_journal_page_last               9631
_journal_paper_doi               10.1021/ja062950b
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C19 H27 N O4'
_chemical_formula_weight         333.42
_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                   8.5930(17)
_cell_length_b                   12.377(3)
_cell_length_c                   17.909(4)
_cell_measurement_reflns_used    1967
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      22.5
_cell_measurement_theta_min      3.5
_cell_volume                     1904.7(7)
_computing_cell_refinement       'Bruker SAINT+'
_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, 1997)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0352
_diffrn_reflns_av_sigmaI/netI    0.0310
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            15183
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.00
_diffrn_standards_decay_%        1
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9872
_exptl_absorpt_correction_T_min  0.9777
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1999)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.163
_exptl_crystal_density_meas      0
_exptl_crystal_description       Parallelepiped
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.242
_refine_diff_density_min         -0.182
_refine_diff_density_rms         0.025
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(14)
_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     221
_refine_ls_number_reflns         3738
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0626
_refine_ls_R_factor_gt           0.0425
_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^)+(0.0540P)^2^+0.1000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1002
_refine_ls_wR_factor_ref         0.1102
_reflns_number_gt                2777
_reflns_number_total             3738
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja062950bsi20060505_030058.cif
_cod_data_source_block           zhl1
_cod_database_code               4110776