Highly Stereoselective Generation of Complex Oxy-Bicyclic Scaffolds via an Atom-Economic Pd(II)-Catalyzed Hydroalkynylation, Isomerization and Diels-Alder Cycloaddition Sequence.
Shen, Ruwei; Chen, Ke; Deng, Qiulin; Yang, Jianjun; Zhang, Lixiong; Organic letters 16 (2014) 1208–1211; doi:10.1021/ol500101b

data_1513454
_publ_section_title
;
 Highly Stereoselective Generation of Complex Oxy-Bicyclic Scaffolds via
 an Atom-Economic Pd(II)-Catalyzed Hydroalkynylation, Isomerization and
 Diels-Alder Cycloaddition Sequence.
;
_journal_issue                   4
_journal_name_full               'Organic letters'
_journal_page_first              1208
_journal_page_last               1211
_journal_paper_doi               10.1021/ol500101b
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C28 H24 O3'
_chemical_formula_sum            'C28 H24 O3'
_chemical_formula_weight         408.47
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 106.550(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.2556(7)
_cell_length_b                   24.4715(15)
_cell_length_c                   9.0713(8)
_cell_measurement_reflns_used    2348
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.4296
_cell_measurement_theta_min      3.1223
_cell_volume                     2182.3(3)
_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      293(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  0.0276
_diffrn_reflns_av_sigmaI/netI    0.0382
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            8525
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         3.13
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.9819
_exptl_absorpt_correction_T_min  0.9750
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis PRO (Agilent Technologies, 2011) 
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.160
_refine_diff_density_min         -0.147
_refine_diff_density_rms         0.033
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         3982
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0807
_refine_ls_R_factor_gt           0.0472
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0466P)^2^+0.3438P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1001
_refine_ls_wR_factor_ref         0.1146
_reflns_number_gt                2690
_reflns_number_total             3982
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol500101b_si_002.cif
_cod_data_source_block           120405_cj120401_2
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1513454