Synthesis of polysubstituted furans via copper-mediated annulation of alkyl ketones with α,β-unsaturated carboxylic acids.
Yang, Yuzhu; Yao, Jinzhong; Zhang, Yuhong; Organic letters 15 (2013) 3206–3209; doi:10.1021/ol400912v

data_1556154
_publ_section_title
;
 Synthesis of polysubstituted furans via copper-mediated annulation of
 alkyl ketones with \a,\b-unsaturated carboxylic acids.
;
_journal_issue                   13
_journal_name_full               'Organic letters'
_journal_page_first              3206
_journal_page_last               3209
_journal_paper_doi               10.1021/ol400912v
_journal_volume                  15
_journal_year                    2013
_chemical_formula_moiety         'C18 H14 O3'
_chemical_formula_sum            'C18 H14 O3'
_chemical_formula_weight         278.29
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 96.804(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.5563(5)
_cell_length_b                   23.1971(19)
_cell_length_c                   10.5069(8)
_cell_measurement_reflns_used    1349
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      29.5130
_cell_measurement_theta_min      3.2728
_cell_volume                     1344.70(19)
_computing_cell_refinement       'CrysAlis PRO (Agilent Technologies, 2011)'
_computing_data_collection       'CrysAlis PRO'
_computing_data_reduction        'CrysAlis PRO'
_computing_molecular_graphics    'OLEX2 (Dolomanov et al., 2009)'
_computing_publication_material  OLEX2
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      170(2)
_diffrn_detector_area_resol_mean 10.3592
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       '\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  0.0331
_diffrn_reflns_av_sigmaI/netI    0.0467
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            5009
_diffrn_reflns_theta_full        25.34
_diffrn_reflns_theta_max         25.34
_diffrn_reflns_theta_min         3.28
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  0.9708
_exptl_absorpt_correction_T_min  0.9566
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis PRO (Agilent Technologies, 2011) 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.375
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.194
_refine_diff_density_min         -0.170
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         2457
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0632
_refine_ls_R_factor_gt           0.0431
_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^)+(0.0488P)^2^+0.0849P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0970
_refine_ls_wR_factor_ref         0.1098
_reflns_number_gt                1827
_reflns_number_total             2457
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol400912v_si_002.cif
_cod_data_source_block           130529_yyz130529
_cod_original_cell_volume        1344.7(2)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1556154