Memory of Chirality of Tertiary Aromatic Amides: A Simple and Efficient Method for the Enantioselective Synthesis of Quaternary α-Amino Acids
Mathieu Branca; Sébastien Pena; Régis Guillot; Didier Gori; Valérie Alezra; Cyrille Kouklovsky; Journal of the American Chemical Society 131 (2009) 10711–10718; doi:10.1021/ja9039604

data_4104769
_publ_contact_author_address
;Laboratoire de Chimie des Proc\'ed\'es et Substances Naturelles,
ICMMO, 
CNRS UMR 8182,
B\^at 410, 
Univ. Paris-Sud,
F-91405 Orsay. 
;
_publ_contact_author_email       valezra@icmo.u-psud.fr
_publ_contact_author_fax         '(00) 33 1 69 15 46 7'
_publ_contact_author_name        'Val\'erie Alezra'
_publ_contact_author_phone       '(00) 33 1 69 15 76 5'
_publ_section_title
;
 Memory of Chirality of Tertiary Aromatic Amides: A Simple and Efficient
 Method for the Enantioselective Synthesis of Quaternary \a-Amino Acids
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10711
_journal_page_last               10718
_journal_paper_doi               10.1021/ja9039604
_journal_volume                  131
_journal_year                    2009
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C19 H19 N O3'
_chemical_formula_sum            'C19 H19 N O3'
_chemical_formula_weight         309.35
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_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                   6.6925(6)
_cell_length_b                   11.4684(10)
_cell_length_c                   20.9665(18)
_cell_measurement_reflns_used    8054
_cell_measurement_temperature    100(1)
_cell_measurement_theta_max      36.14
_cell_measurement_theta_min      3.20
_cell_volume                     1609.2(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(1)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.873
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0245
_diffrn_reflns_av_sigmaI/netI    0.0186
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            39435
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         36.48
_diffrn_reflns_theta_min         1.94
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_type              'X8 APEX II kappa Bruker ICMMO'
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  0.985
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_description       prism
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.434
_refine_diff_density_min         -0.256
_refine_diff_density_rms         0.060
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.2(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.096
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         6847
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.096
_refine_ls_R_factor_all          0.0426
_refine_ls_R_factor_gt           0.0382
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0569P)^2^+0.2283P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0952
_refine_ls_wR_factor_ref         0.0989
_reflns_number_gt                6426
_reflns_number_total             6847
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9039604_si_002.cif
_cod_data_source_block           453GuillotICMMO
_cod_database_code               4104769