Gold(i)-catalyzed [2 + 2 + 2] cycloaddition of allenamides, alkenes and aldehydes: a straightforward approach to tetrahydropyrans
Faustino, Hélio; Varela, Iván; Mascareñas, José L.; López, Fernando; Chem. Sci. 6 (2015) 2903–; doi:10.1039/C5SC00295H

data_1518844
_publ_section_title
;
 Gold(i)-catalyzed [2 + 2 + 2] cycloaddition of allenamides, alkenes and
 aldehydes: a straightforward approach to tetrahydropyrans
;
_journal_issue                   5
_journal_name_full               'Chem. Sci.'
_journal_page_first              2903
_journal_paper_doi               10.1039/C5SC00295H
_journal_volume                  6
_journal_year                    2015
_chemical_formula_moiety         'C25 H27 N O3'
_chemical_formula_sum            'C25 H27 N O3'
_chemical_formula_weight         389.48
_chemical_name_common            lm1iv2-O11-3
_chemical_name_systematic        4aha
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4.3
_audit_creation_date             2013-11-26T13:23:00-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_update_record
;
2014-12-09 deposited with the CCDC.
2015-03-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 105.806(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.6026(4)
_cell_length_b                   12.0053(4)
_cell_length_c                   16.5199(6)
_cell_measurement_reflns_used    9773
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.53
_cell_measurement_theta_min      2.56
_cell_measurement_wavelength     0.71073
_cell_volume                     2023.27(13)
_computing_cell_refinement       'SAINT V8.34A integration software'
_computing_data_collection       'Bruker APEX2 software'
_computing_data_reduction        'SORTAV (Blessing, 1995)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 2012)'
_computing_publication_material  'WinGX publication routines (Farrugia, 2012)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SIR-2011 (Burla et al., 2012)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'APEX-II CCD'
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       '\k-geometry diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II'
_diffrn_measurement_method       '\f or \w oscillation scans'
_diffrn_orient_matrix_UB_11      -0.075064
_diffrn_orient_matrix_UB_12      -0.053026
_diffrn_orient_matrix_UB_13      -0.018648
_diffrn_orient_matrix_UB_21      -0.031948
_diffrn_orient_matrix_UB_22      0.042191
_diffrn_orient_matrix_UB_23      -0.053906
_diffrn_orient_matrix_UB_31      0.054344
_diffrn_orient_matrix_UB_32      -0.04844
_diffrn_orient_matrix_UB_33      -0.026538
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0386
_diffrn_reflns_Laue_measured_fraction_full 1
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            38710
_diffrn_reflns_point_group_measured_fraction_full 1
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_reduction_process
;
        Scaled and merged with Sortav
        R.H. Blessing, (1987) Cryst. Rev. 1, 3-58
        R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397
;
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.568
_diffrn_reflns_theta_min         2.057
_diffrn_source                   'sealed x-ray tube'
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.914
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2012/1 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.279
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.321
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     262
_refine_ls_number_reflns         6193
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.072
_refine_ls_R_factor_gt           0.048
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0476P)^2^+0.8598P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1066
_refine_ls_wR_factor_ref         0.1173
_reflns_number_gt                4628
_reflns_number_total             6193
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5sc00295h2.cif
_cod_data_source_block           shelx
_cod_depositor_comments
'Adding full bibliography for 1518843--1518845.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1518844
_shelx_estimated_absorpt_t_min   0.977
_shelx_estimated_absorpt_t_max   0.992