Oppolzer-type intramolecular Diels-Alder cycloadditions via isomerizations of allenamides.
Feltenberger, John B.; Hsung, Richard P.; Organic letters 13 (2011) 3114–3117; doi:10.1021/ol2010227

data_1502225
_publ_section_title
;
 Oppolzer-type intramolecular Diels-Alder cycloadditions via
 isomerizations of allenamides.
;
_journal_issue                   12
_journal_name_full               'Organic letters'
_journal_page_first              3114
_journal_page_last               3117
_journal_paper_doi               10.1021/ol2010227
_journal_volume                  13
_journal_year                    2011
_chemical_formula_moiety         'C16 H20 N2 O4 S'
_chemical_formula_sum            'C16 H20 N2 O4 S'
_chemical_formula_weight         336.40
_chemical_name_common            11018c
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                89.976(4)
_cell_angle_beta                 88.253(4)
_cell_angle_gamma                75.849(4)
_cell_formula_units_Z            2
_cell_length_a                   6.886(2)
_cell_length_b                   9.127(3)
_cell_length_c                   12.929(4)
_cell_measurement_reflns_used    2989
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.78
_cell_volume                     787.5(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 0.985
_diffrn_measured_fraction_theta_max 0.985
_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
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0342
_diffrn_reflns_av_sigmaI/netI    0.0293
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            14720
_diffrn_reflns_theta_full        26.40
_diffrn_reflns_theta_max         26.40
_diffrn_reflns_theta_min         1.58
_exptl_absorpt_coefficient_mu    0.228
_exptl_absorpt_correction_T_max  0.9910
_exptl_absorpt_correction_T_min  0.9045
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'TWINABS (Sheldrick, 2008/2)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.417
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             356
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.529
_refine_diff_density_min         -0.345
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.135
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         3186
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.135
_refine_ls_R_factor_all          0.0516
_refine_ls_R_factor_gt           0.0418
_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^)+(0.0662P)^2^+0.3374P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1195
_refine_ls_wR_factor_ref         0.1252
_reflns_number_gt                2745
_reflns_number_total             3186
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol2010227_si_003.cif
_cod_data_source_block           11018c
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        787.6(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1502225