High Pressure promoted Dearomatization of Nitroarenes by [4+2] Cycloadditions with Silyloxydienes
Rkein, Batoul; Coffinier, Romain; Powderly, Marian; Manneveau, Maxime; Sanselme, Morgane; Durandetti, Muriel; Sebban, Muriel; Hamdoun, Ghanem; Oulyadi, Hassan; Harrowven, David; Legros, Julien; Chataigner, Isabelle; Chemical Communications  (2022) –; doi:10.1039/D2CC04778K

data_7130769
_publ_section_title
;
 High Pressure promoted Dearomatization of Nitroarenes by [4+2]
 Cycloadditions with Silyloxydienes
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/D2CC04778K
_journal_year                    2022
_chemical_absolute_configuration syn
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C15 H16 N2 O4'
_chemical_formula_sum            'C15 H16 N2 O4'
_chemical_formula_weight         288.3
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4
_audit_creation_date             2020-11-30T16:43:27-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_update_record
;
2022-08-08 deposited with the CCDC.	2022-09-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.4616(11)
_cell_length_b                   8.6131(13)
_cell_length_c                   21.565(3)
_cell_measurement_reflns_used    1738
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      23.3
_cell_measurement_theta_min      1.89
_cell_measurement_wavelength     0.71073
_cell_volume                     1385.9(4)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'SMART APEX I Bruker'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0892
_diffrn_reflns_av_unetI/netI     0.0678
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            6286
_diffrn_reflns_theta_full        23.3
_diffrn_reflns_theta_max         23.3
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.382
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0
_exptl_crystal_size_mid          0
_exptl_crystal_size_min          0
_refine_diff_density_max         0.19
_refine_diff_density_min         -0.203
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   4(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         1994
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.057
_refine_ls_R_factor_gt           0.0505
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0723P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1265
_refine_ls_wR_factor_ref         0.1317
_reflns_number_gt                1738
_reflns_number_total             1994
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            d2cc04778k2.cif
_cod_data_source_block           mp23
_cod_database_code               7130769