Reaction of N-heterocyclic carbenes with chalcones leading to the synthesis of deoxy-Breslow intermediates in their oxidized form
Anup Bhunia; Shridhar Thorat; Rajesh G. Gonnade; Akkattu T. Biju; Chem.Commun. 51 (2015) 13690–; doi:10.1039/C5cc05800G

data_7117687
_publ_section_title
;
 Reaction of N-heterocyclic carbenes with chalcones leading to the
 synthesis of deoxy-Breslow intermediates in their oxidized form
;
_journal_name_full               Chem.Commun.
_journal_page_first              13690
_journal_paper_doi               10.1039/C5cc05800G
_journal_volume                  51
_journal_year                    2015
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C43 H51 B Cl2 F4 N2 O'
_chemical_formula_sum            'C43 H51 B Cl2 F4 N2 O'
_chemical_formula_weight         769.57
_chemical_name_systematic        ABB_AL_125
_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
_audit_update_record
;
2015-04-27 deposited with the CCDC.
2015-07-20 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.1048(2)
_cell_length_b                   16.0393(3)
_cell_length_c                   21.3761(4)
_cell_measurement_reflns_used    9571
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.33
_cell_measurement_theta_min      2.29
_cell_volume                     4150.22(13)
_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      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0309
_diffrn_reflns_av_sigmaI/netI    0.0194
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            46199
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.59
_exptl_absorpt_coefficient_mu    0.209
_exptl_absorpt_correction_T_max  0.9575
_exptl_absorpt_correction_T_min  0.9119
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS,(BRUKER,2006)
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.232
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       PLATE
_exptl_crystal_F_000             1624
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: DCM'
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.312
_refine_diff_density_min         -0.328
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     486
_refine_ls_number_reflns         7301
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.0419
_refine_ls_R_factor_gt           0.0384
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0219P)^2^+2.6532P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0805
_refine_ls_wR_factor_ref         0.0824
_reflns_number_gt                6815
_reflns_number_total             7301
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc05800g2.cif
_cod_data_source_block           abb_al_125_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_absolute_configuration' value 'SYN' changed to 'syn'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 3392 2015-05-12 13:50:21Z andrius 
;
_cod_original_sg_symbol_H-M      'P2(1)2(1)2(1) '
_cod_database_code               7117687