Synthesis of the Stenine Ring System from Pyrrole
Roderick W. Bates; S. Sridhar; Journal of Organic Chemistry 76 (2011) 5026–5035; doi:10.1021/jo200699k

data_4026395
_publ_section_title
;
 Synthesis of the Stenine Ring System from Pyrrole
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5026
_journal_page_last               5035
_journal_paper_doi               10.1021/jo200699k
_journal_volume                  76
_journal_year                    2011
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C30 H36 N2 O4'
_chemical_formula_sum            'C30 H36 N2 O4'
_chemical_formula_weight         488.61
_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                   8.5162(3)
_cell_length_b                   16.3427(6)
_cell_length_c                   17.5249(5)
_cell_measurement_reflns_used    4927
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      30.43
_cell_measurement_theta_min      2.32
_cell_volume                     2439.08(14)
_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      103(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0454
_diffrn_reflns_av_sigmaI/netI    0.0361
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            21929
_diffrn_reflns_theta_full        30.85
_diffrn_reflns_theta_max         30.85
_diffrn_reflns_theta_min         1.70
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9749
_exptl_absorpt_correction_T_min  0.9724
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_description       block
_exptl_crystal_F_000             1048
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.29
_refine_diff_density_max         0.429
_refine_diff_density_min         -0.268
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.946
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     337
_refine_ls_number_reflns         4283
_refine_ls_number_restraints     20
_refine_ls_restrained_S_all      0.945
_refine_ls_R_factor_all          0.0519
_refine_ls_R_factor_gt           0.0434
_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^)+(0.0701P)^2^+0.9253P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1113
_refine_ls_wR_factor_ref         0.1176
_reflns_number_gt                3731
_reflns_number_total             4283
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo200699k_si_005.cif
_cod_data_source_block           rb54s
_cod_database_code               4026395