Construction of 1-pyrroline skeletons by Lewis acid-mediated conjugate addition of vinyl azides.
Zhu, Xu; Chiba, Shunsuke; Chemical communications (Cambridge, England) 52 (2016) 2473–2476; doi:10.1039/c5cc10299e

data_7118252
_publ_section_title
;
 Construction of 1-pyrroline skeletons by Lewis acid-mediated conjugate
 addition of vinyl azides.
;
_journal_issue                   12
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              2473
_journal_page_last               2476
_journal_paper_doi               10.1039/c5cc10299e
_journal_volume                  52
_journal_year                    2016
_chemical_formula_sum            'C19 H15 N O4'
_chemical_formula_weight         321.32
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_update_record
;
2015-12-15 deposited with the CCDC.
2016-01-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 101.637(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.3566(6)
_cell_length_b                   17.7311(14)
_cell_length_c                   10.5304(7)
_cell_measurement_reflns_used    1518
_cell_measurement_temperature    103.(2)
_cell_measurement_theta_max      26.2327
_cell_measurement_theta_min      2.7409
_cell_volume                     1528.24(19)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 (Bruker AXS Inc., 2014)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'XP (Bruker AXS Inc., 2014)'
_computing_publication_material  'APEX2 (Bruker AXS Inc., 2014)'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      103.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1229
_diffrn_reflns_av_unetI/netI     0.1724
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            20715
_diffrn_reflns_theta_full        38.64
_diffrn_reflns_theta_max         38.64
_diffrn_reflns_theta_min         3.03
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.96
_exptl_absorpt_correction_T_min  0.70
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/4 (Bruker AXS Inc.)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.397
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             672
_exptl_crystal_size_max          0.420
_exptl_crystal_size_mid          0.400
_exptl_crystal_size_min          0.380
_refine_diff_density_max         0.579
_refine_diff_density_min         -0.490
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.966
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         8575
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.966
_refine_ls_R_factor_all          0.1519
_refine_ls_R_factor_gt           0.0822
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0732P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1787
_refine_ls_wR_factor_ref         0.2231
_reflns_number_gt                4574
_reflns_number_total             8575
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5cc10299e2.cif
_cod_data_source_block           I
_cod_depositor_comments
'Adding full bibliography for 7118247--7118254.cif.'
_cod_database_code               7118252
_shelx_res_checksum              59579
_shelx_hkl_checksum              56545