Intramolecular Paterno-Buchi reaction of atropisomeric alpha-oxoamides in solution and in the solid-state
Ramya Raghunathan; Elango Kumarasamy; Akila Iyer; Angel Ugrinov; J. Sivaguru; Chem.Commun. 49 (2013) 8713–; doi:10.1039/c3cc44281k

data_7109762
_publ_section_title
;
 Intramolecular Paterno-Buchi reaction of atropisomeric alpha-oxoamides in
 solution and in the solid-state
;
_journal_name_full               Chem.Commun.
_journal_page_first              8713
_journal_paper_doi               10.1039/c3cc44281k
_journal_volume                  49
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C26 H31 N O3'
_chemical_formula_sum            'C26 H31 N O3'
_chemical_formula_weight         405.52
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 106.7490(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.4837(3)
_cell_length_b                   11.0800(3)
_cell_length_c                   11.5198(3)
_cell_measurement_reflns_used    9842
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      67.24
_cell_measurement_theta_min      4.01
_cell_volume                     1159.14(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0230
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            12752
_diffrn_reflns_theta_full        67.44
_diffrn_reflns_theta_max         67.44
_diffrn_reflns_theta_min         4.01
_exptl_absorpt_coefficient_mu    0.594
_exptl_absorpt_correction_T_max  0.9602
_exptl_absorpt_correction_T_min  0.8657
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Acta Cryst (1995). A51, 33-38'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.162
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             436
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.256
_refine_diff_density_min         -0.264
_refine_diff_density_rms         0.074
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(35)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.243
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     368
_refine_ls_number_reflns         3872
_refine_ls_number_restraints     441
_refine_ls_restrained_S_all      1.208
_refine_ls_R_factor_all          0.0566
_refine_ls_R_factor_gt           0.0564
_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^)+(0.0378P)^2^+0.8732P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1436
_refine_ls_wR_factor_ref         0.1437
_reflns_number_gt                3856
_reflns_number_total             3872
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc44281k.txt
_cod_data_source_block           (R,R,M)_2a
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7109762