Sc(OTf)3-catalyzed or t-BuOK promoted tandem reaction of 2-(2-(alkynyl)benzylidene)malonate with indole.
Gao, Ke; Wu, Jie; Organic letters 10 (2008) 2251–2254; doi:10.1021/ol800664z

data_1504688
_publ_section_title
;
 Sc(OTf)3-catalyzed or t-BuOK promoted tandem reaction of
 2-(2-(alkynyl)benzylidene)malonate with indole.
;
_journal_issue                   11
_journal_name_full               'Organic letters'
_journal_page_first              2251
_journal_page_last               2254
_journal_paper_doi               10.1021/ol800664z
_journal_volume                  10
_journal_year                    2008
_chemical_formula_sum            'C30 H27 N O4'
_chemical_formula_weight         465.53
_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                 91.792(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.748(8)
_cell_length_b                   9.612(4)
_cell_length_c                   14.601(6)
_cell_measurement_reflns_used    1024
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.200
_cell_measurement_theta_min      2.537
_cell_volume                     2489.6(18)
_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 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0374
_diffrn_reflns_av_sigmaI/netI    0.0398
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10861
_diffrn_reflns_theta_full        26.01
_diffrn_reflns_theta_max         26.01
_diffrn_reflns_theta_min         2.30
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9902
_exptl_absorpt_correction_T_min  0.9878
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.242
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             984
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.164
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.941
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         4878
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.941
_refine_ls_R_factor_all          0.0627
_refine_ls_R_factor_gt           0.0434
_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^)+(0.0706P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1093
_refine_ls_wR_factor_ref         0.1190
_reflns_number_gt                3482
_reflns_number_total             4878
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol800664z-file005.cif
_cod_data_source_block           f80305a
_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_cell_volume        2489.6(19)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1504688