Multicomponent reactions in ionic liquids: convenient and ecocompatible access to the 2,6-DABCO core
El Asri, Zhor; Génisson, Yves; Guillen, Frédéric; Baslé, Olivier; Isambert, Nicolas; del Mar Sanchez Duque, Maria; Ladeira, Sonia; Rodriguez, Jean; Constantieux, Thierry; Plaquevent, Jean-Christophe; Green Chemistry 13 (2011) 2549–; doi:10.1039/c1gc15635g

data_7206453
_publ_section_title
;
 Multicomponent reactions in ionic liquids: convenient and
 ecocompatible access to the 2,6-DABCO core
;
_journal_issue                   9
_journal_name_full               'Green Chemistry'
_journal_page_first              2549
_journal_paper_doi               10.1039/c1gc15635g
_journal_volume                  13
_journal_year                    2011
_chemical_absolute_configuration syn
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C25 H22 N2 O2'
_chemical_formula_sum            'C25 H22 N2 O2'
_chemical_formula_weight         382.45
_space_group_IT_number           19
_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
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.4801(2)
_cell_length_b                   15.4593(8)
_cell_length_c                   19.1885(9)
_cell_measurement_reflns_used    2943
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      27.21
_cell_measurement_theta_min      2.5
_cell_measurement_wavelength     0.71073
_cell_volume                     1922.26(15)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Giacovazzo et al, 1993)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.945
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'Bruker Kappa APEX II'
_diffrn_measurement_method       \w-\f
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0356
_diffrn_reflns_av_unetI/netI     0.0416
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            10127
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         2.5
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.996
_exptl_absorpt_correction_T_min  0.985
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
[c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.245
_refine_diff_density_min         -0.173
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         3267
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0457
_refine_ls_R_factor_gt           0.0342
_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^)+(0.0380P)^2^+0.1130P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0731
_refine_ls_wR_factor_ref         0.0778
_reflns_number_gt                2802
_reflns_number_total             3267
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1gc15635g.txt
_cod_data_source_block           crotonaldehyde
_cod_database_code               7206453