Phosphine-mediated regio- and stereoselective hydrocarboxylation of enynes.
Li, Wenbo; Zhang, Junliang; Organic letters 16 (2014) 162–165; doi:10.1021/ol4031556

data_1513552
_publ_section_title
;
 Phosphine-mediated regio- and stereoselective hydrocarboxylation of
 enynes.
;
_journal_issue                   1
_journal_name_full               'Organic letters'
_journal_page_first              162
_journal_page_last               165
_journal_paper_doi               10.1021/ol4031556
_journal_volume                  16
_journal_year                    2014
_chemical_formula_sum            'C21 H17 N O3'
_chemical_formula_weight         331.36
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 96.722(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.033(2)
_cell_length_b                   7.4849(13)
_cell_length_c                   21.792(4)
_cell_measurement_temperature    296(2)
_cell_volume                     1787.2(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0370
_diffrn_reflns_av_sigmaI/netI    0.0244
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            20146
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.9902
_exptl_absorpt_correction_T_min  0.9661
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.231
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.164
_refine_diff_density_min         -0.127
_refine_diff_density_rms         0.028
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     226
_refine_ls_number_reflns         3140
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0688
_refine_ls_R_factor_gt           0.0425
_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^)+(0.0501P)^2^+0.4291P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1046
_refine_ls_wR_factor_ref         0.1229
_reflns_number_gt                2147
_reflns_number_total             3140
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol4031556_si_002.cif
_cod_data_source_block           z
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        1787.3(5)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1513552