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_7118250
_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            'C25 H20 N3 O'
_chemical_formula_weight         378.44
_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                 96.996(8)
_cell_angle_gamma                90
_cell_formula_units_Z            4
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_cell_measurement_temperature    103.(2)
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_computing_molecular_graphics    'XP (Bruker AXS Inc., 2014)'
_computing_publication_material  'APEX2 (Bruker AXS Inc., 2014)'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
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_diffrn_ambient_temperature      103.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
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_diffrn_reflns_limit_h_min       -23
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_exptl_absorpt_coefficient_mu    0.084
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_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/4 (Bruker AXS Inc.)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.342
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_exptl_crystal_description       plate
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_refine_ls_extinction_coef       0.025(4)
_refine_ls_extinction_method     SHELXL
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_refine_ls_number_reflns         3967
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.1109P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_refine_ls_wR_factor_ref         0.2439
_reflns_number_gt                1957
_reflns_number_total             3967
_reflns_threshold_expression     'I > 2\s(I)'
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_cod_depositor_comments
'Adding full bibliography for 7118247--7118254.cif.'
_cod_original_cell_volume        1872.4(4)
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