Highly substituted 2,3-dihydroisoxazoles by Et(3)N-catalyzed tandem reaction of electron-deficient 1,3-conjugated enynes with hydroxylamines.
Yu, Xiuzhao; Du, Bo; Wang, Kai; Zhang, Junliang; Organic letters 12 (2010) 1876–1879; doi:10.1021/ol100490y

data_1502938
_publ_section_title
;
 Highly substituted 2,3-dihydroisoxazoles by Et(3)N-catalyzed tandem
 reaction of electron-deficient 1,3-conjugated enynes with hydroxylamines.
;
_journal_issue                   8
_journal_name_full               'Organic letters'
_journal_page_first              1876
_journal_page_last               1879
_journal_paper_doi               10.1021/ol100490y
_journal_volume                  12
_journal_year                    2010
_chemical_formula_sum            'C30 H24 Cl N O2'
_chemical_formula_weight         465.95
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 91.438(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.5972(3)
_cell_length_b                   22.0274(13)
_cell_length_c                   19.8862(11)
_cell_measurement_temperature    296(2)
_cell_volume                     2451.0(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0261
_diffrn_reflns_av_sigmaI/netI    0.0270
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            13748
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.85
_exptl_absorpt_coefficient_mu    0.183
_exptl_absorpt_correction_T_max  0.9439
_exptl_absorpt_correction_T_min  0.9088
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             976
_exptl_crystal_size_max          0.53
_exptl_crystal_size_mid          0.49
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.127
_refine_diff_density_min         -0.182
_refine_diff_density_rms         0.025
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     307
_refine_ls_number_reflns         4187
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0486
_refine_ls_R_factor_gt           0.0355
_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^)+(0.0261P)^2^+1.0843P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0749
_refine_ls_wR_factor_ref         0.0816
_reflns_number_gt                3553
_reflns_number_total             4187
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol100490y_si_003.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 /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_sg_symbol_H-M      Cc
_cod_database_code               1502938