Pd-catalyzed benzylic C-H oxidation of cyclotriveratrylene - product diversity.
Senthilkumar, B.; Gonnade, R. G.; Ramana, C. V.; Organic & biomolecular chemistry 13 (2015) 2323–2329; doi:10.1039/c4ob02469a

data_7154252
_publ_section_title
;
 Pd-catalyzed benzylic C-H oxidation of cyclotriveratrylene - product
 diversity.
;
_journal_issue                   8
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              2323
_journal_page_last               2329
_journal_paper_doi               10.1039/c4ob02469a
_journal_volume                  13
_journal_year                    2015
_chemical_formula_moiety         'C27 H26 O7, 0.5(H2O)'
_chemical_formula_sum            'C27 H27 O7.5'
_chemical_formula_weight         471.49
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-09-30 deposited with the CCDC.
2014-12-12 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 100.352(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.2799(12)
_cell_length_b                   15.4053(14)
_cell_length_c                   26.172(3)
_cell_measurement_reflns_used    3569
_cell_measurement_temperature    240(2)
_cell_measurement_theta_max      21.57
_cell_measurement_theta_min      2.29
_cell_volume                     5267.1(9)
_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      240(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device       'CCD Area Detector'
_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  0.0433
_diffrn_reflns_av_sigmaI/netI    0.0530
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            26214
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.09
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.9968
_exptl_absorpt_correction_T_min  0.9638
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2006)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.189
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1992
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Ethyl Acetate - Petroleum Ether'
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.286
_refine_diff_density_min         -0.176
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     652
_refine_ls_number_reflns         9218
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0974
_refine_ls_R_factor_gt           0.0580
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0744P)^2^+1.0783P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1406
_refine_ls_wR_factor_ref         0.1623
_reflns_number_gt                5913
_reflns_number_total             9218
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ob02469a2.cif
_cod_data_source_block           8
_cod_depositor_comments
'Adding full bibliography for 7154250--7154253.cif.'
_cod_original_cell_volume        5267.2(8)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_original_formula_sum        'C27 H27 O7.50'
_cod_database_code               7154252