Copper-catalyzed Ficini [2 + 2] cycloaddition of ynamides.
Li, Hongyan; Hsung, Richard P.; DeKorver, Kyle A.; Wei, Yonggang; Organic letters 12 (2010) 3780–3783; doi:10.1021/ol101418d

data_1503116
_publ_section_title
;
 Copper-catalyzed Ficini [2 + 2] cycloaddition of ynamides.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              3780
_journal_page_last               3783
_journal_paper_doi               10.1021/ol101418d
_journal_volume                  12
_journal_year                    2010
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C23 H25 N O4 S'
_chemical_formula_sum            'C23 H25 N O4 S'
_chemical_formula_weight         411.50
_chemical_name_common            10026a
_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'
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_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                   8.2740(9)
_cell_length_b                   10.2749(11)
_cell_length_c                   23.741(3)
_cell_measurement_reflns_used    2977
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      26.01
_cell_measurement_theta_min      2.61
_cell_volume                     2018.3(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_limit_h_max       10
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_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            22627
_diffrn_reflns_theta_full        26.39
_diffrn_reflns_theta_max         26.39
_diffrn_reflns_theta_min         1.72
_exptl_absorpt_coefficient_mu    0.191
_exptl_absorpt_correction_T_max  0.9363
_exptl_absorpt_correction_T_min  0.9277
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             872
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.428
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_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
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_refine_ls_extinction_method     none
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_refine_ls_number_reflns         4144
_refine_ls_number_restraints     0
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_refine_ls_R_factor_all          0.0504
_refine_ls_R_factor_gt           0.0371
_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^)+(0.0387P)^2^+0.8883P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0838
_refine_ls_wR_factor_ref         0.0911
_reflns_number_gt                3575
_reflns_number_total             4144
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol101418d_si_003.cif
_cod_data_source_block           10026a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        2018.4(4)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1503116