Cationic Pd(II)-catalyzed enantioselective cyclization of aroylmethyl 2-alkynoates initiated by carbopalladation of alkynes with arylboronic acids.
Song, Juan; Shen, Qi; Xu, Fan; Lu, Xiyan; Organic letters 9 (2007) 2947–2950; doi:10.1021/ol0711772

data_1505463
_publ_section_title
;
 Cationic Pd(II)-catalyzed enantioselective cyclization of aroylmethyl
 2-alkynoates initiated by carbopalladation of alkynes with arylboronic
 acids.
;
_journal_issue                   15
_journal_name_full               'Organic letters'
_journal_page_first              2947
_journal_page_last               2950
_journal_paper_doi               10.1021/ol0711772
_journal_volume                  9
_journal_year                    2007
_chemical_absolute_configuration ad
_chemical_formula_sum            'C19 H18 O4'
_chemical_formula_weight         310.33
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 93.684(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.0414(10)
_cell_length_b                   11.4829(14)
_cell_length_c                   8.4970(11)
_cell_measurement_reflns_used    2010
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      49.804
_cell_measurement_theta_min      5.064
_cell_volume                     782.98(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0710
_diffrn_reflns_av_sigmaI/netI    0.0561
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            4626
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.40
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7558
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.316
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             328
_exptl_crystal_size_max          0.416
_exptl_crystal_size_mid          0.345
_exptl_crystal_size_min          0.217
_refine_diff_density_max         0.192
_refine_diff_density_min         -0.173
_refine_diff_density_rms         0.041
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   10(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.979
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     211
_refine_ls_number_reflns         1796
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.979
_refine_ls_R_factor_all          0.0497
_refine_ls_R_factor_gt           0.0433
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0573P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0998
_refine_ls_wR_factor_ref         0.1025
_reflns_number_gt                1508
_reflns_number_total             1796
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol0711772si20070522_100845.cif
_cod_data_source_block           cd27243
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               1505463