Organocatalytic enantioselective Diels-Alder reaction of dienes with alpha-(N,N-Diacylamino)acroleins.
Ishihara, Kazuaki; Nakano, Kazuhiko; Akakura, Matsujiro; Organic letters 10 (2008) 2893–2896; doi:10.1021/ol8011277

data_1504773
_publ_section_title
;
 Organocatalytic enantioselective Diels-Alder reaction of dienes with
 alpha-(N,N-Diacylamino)acroleins.
;
_journal_issue                   13
_journal_name_full               'Organic letters'
_journal_page_first              2893
_journal_page_last               2896
_journal_paper_doi               10.1021/ol8011277
_journal_volume                  10
_journal_year                    2008
_chemical_absolute_configuration R
_chemical_formula_sum            'C24 H18 F4 N2 O3'
_chemical_formula_weight         458.40
_chemical_name_common
;
N-((R)-1-phenylethyl)-2-(4,5,6,7-tetrafluoro-1,
3-dioxoisoindolin-2-yl)bicyclo[2.2.1]hept-5-ene-2-carboxamide
;
_space_group_IT_number           80
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I 4bw'
_symmetry_space_group_name_H-M   'I 41'
_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            8
_cell_length_a                   17.532(5)
_cell_length_b                   17.532(5)
_cell_length_c                   14.212(8)
_cell_measurement_temperature    173(2)
_cell_volume                     4368(3)
_computing_cell_refinement       'Bruker SMART APEX'
_computing_data_collection       'Bruker SMART APEX'
_computing_data_reduction        'Bruker SMART APEX'
_computing_molecular_graphics    'ORTEP 3'
_computing_publication_material  'ORTEP 3'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 8.366
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART APEX'
_diffrn_measurement_method       'omega mode'
_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  0.0354
_diffrn_reflns_av_sigmaI/netI    0.0371
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            15516
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         1.64
_exptl_absorpt_coefficient_mu    0.115
_exptl_absorpt_correction_T_max  0.9773
_exptl_absorpt_correction_T_min  0.9662
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Bruker SMART APEX'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.394
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1888
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.190
_refine_diff_density_min         -0.162
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.3(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         5061
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0478
_refine_ls_R_factor_gt           0.0376
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0558P)^2^+0.2307P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0914
_refine_ls_wR_factor_ref         0.0976
_reflns_number_gt                4257
_reflns_number_total             5061
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol8011277-file003.cif
_cod_data_source_block           cpfeth1
_cod_original_sg_symbol_H-M      I41
_cod_database_code               1504773