Organocatalytic Asymmetric Friedel-Crafts Alkylation/Cyclization Cascade Reaction of 1-Naphthols and α,β-Unsaturated Aldehydes: An Enantioselective Synthesis of Chromanes and Dihydrobenzopyranes
Liang Hong; Lei Wang; Wangsheng Sun; Kwokyin Wong; Rui Wang; Journal of Organic Chemistry 74 (2009) 6881–6884; doi:10.1021/jo901409d

data_4024832
_publ_section_title
;
Organocatalytic Asymmetric Friedel-Crafts Alkylation/Cyclization Cascade
Reaction of 1-Naphthols and \a,\b-Unsaturated Aldehydes: An
Enantioselective Synthesis of Chromanes and Dihydrobenzopyranes
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              6881
_journal_page_last               6884
_journal_paper_doi               10.1021/jo901409d
_journal_volume                  74
_journal_year                    2009
_chemical_formula_sum            'C19 H18 O2'
_chemical_formula_weight         278.33
_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                   5.788(2)
_cell_length_b                   10.571(4)
_cell_length_c                   23.447(10)
_cell_measurement_reflns_used    2764
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.25
_cell_measurement_theta_min      2.59
_cell_volume                     1434.8(10)
_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  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_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  0.0246
_diffrn_reflns_av_sigmaI/netI    0.0271
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            8123
_diffrn_reflns_theta_full        26.46
_diffrn_reflns_theta_max         26.46
_diffrn_reflns_theta_min         2.11
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9882
_exptl_absorpt_correction_T_min  0.9813
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.288
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       stick
_exptl_crystal_F_000             592
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.129
_refine_diff_density_min         -0.135
_refine_diff_density_rms         0.028
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.5(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         2910
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0455
_refine_ls_R_factor_gt           0.0365
_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^)+(0.0438P)^2^+0.1415P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0842
_refine_ls_wR_factor_ref         0.0897
_reflns_number_gt                2480
_reflns_number_total             2910
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo901409d_si_002.cif
_cod_data_source_block           p212121
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               4024832