Conjugate Addition/Ireland-Claisen Rearrangements of Allyl Fumarates: Simple Access to Terminally Differentiated Succinates
Cory C. Bausch; Jeffrey S. Johnson; Journal of Organic Chemistry 73 (2008) 1575–1577; doi:10.1021/jo701778k

data_4023253
_publ_section_title
;
 Conjugate Addition/Ireland-Claisen Rearrangements of Allyl
 Fumarates: Simple Access to Terminally Differentiated Succinates
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1575
_journal_page_last               1577
_journal_paper_doi               10.1021/jo701778k
_journal_volume                  73
_journal_year                    2008
_chemical_formula_moiety         'C18 H23 N O3'
_chemical_formula_sum            'C18 H23 N O3'
_chemical_formula_weight         301.37
_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                 103.173(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.1593(14)
_cell_length_b                   22.806(3)
_cell_length_c                   9.8664(14)
_cell_measurement_reflns_used    1644
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      21.65
_cell_measurement_theta_min      2.71
_cell_volume                     1787.6(5)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2'
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker-AXS APEX-II 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  0.0466
_diffrn_reflns_av_sigmaI/netI    0.0482
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            10606
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.79
_exptl_absorpt_coefficient_mu    0.076
_exptl_absorpt_correction_T_max  0.9962
_exptl_absorpt_correction_T_min  0.9813
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.120
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.261
_refine_diff_density_min         -0.160
_refine_diff_density_rms         0.035
_refine_ls_extinction_coef       0.002(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3155
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.1537
_refine_ls_R_factor_gt           0.0715
_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^)+(0.1104P)^2^+0.8011P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1973
_refine_ls_wR_factor_ref         0.2658
_reflns_number_gt                1333
_reflns_number_total             3155
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo701778k-File001.cif
_cod_data_source_block           c07204
_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4023253