Aluminum-Catalyzed Asymmetric Alkylations of Pyridyl-Substituted Alkynyl Ketones with Dialkylzinc Reagents
Donna K. Friel; Marc L. Snapper; Amir H. Hoveyda; Journal of the American Chemical Society 130 (2008) 9942–9951; doi:10.1021/ja802935w

data_4108127
_publ_section_title
;
 Aluminum-Catalyzed Asymmetric Alkylations of Pyridyl-Substituted Alkynyl
 Ketones with Dialkylzinc Reagents
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9942
_journal_page_last               9951
_journal_paper_doi               10.1021/ja802935w
_journal_volume                  130
_journal_year                    2008
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C15 H13 N O'
_chemical_formula_sum            'C15 H13 N O'
_chemical_formula_weight         223.26
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.3494(2)
_cell_length_b                   9.6354(2)
_cell_length_c                   13.2387(3)
_cell_measurement_reflns_used    9791
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      68.52
_cell_measurement_theta_min      3.34
_cell_volume                     1192.61(4)
_computing_cell_refinement       'SAINT 7.3 (Bruker-AXS, 2006)'
_computing_data_collection       'APEX2 2.1 (Bruker-AXS, 2007)'
_computing_data_reduction        'SAINT 7.3 (Bruker-AXS, 2006)'
_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      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Smart APEX CCD'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0185
_diffrn_reflns_av_sigmaI/netI    0.0073
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            22516
_diffrn_reflns_theta_full        67.70
_diffrn_reflns_theta_max         67.70
_diffrn_reflns_theta_min         5.68
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.615
_exptl_absorpt_correction_T_max  0.8614
_exptl_absorpt_correction_T_min  0.7910
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_description       block
_exptl_crystal_F_000             472
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.155
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     158
_refine_ls_number_reflns         2158
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0262
_refine_ls_R_factor_gt           0.0260
_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^)+(0.0395P)^2^+0.2072P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0663
_refine_ls_wR_factor_ref         0.0666
_reflns_number_gt                2150
_reflns_number_total             2158
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja802935w-file002.cif
_cod_data_source_block           d08004
_cod_database_code               4108127