A novel Lewis acid-promoted enyne cycloisomerization of triester-substituted alkenes
Yamazaki, Shoko; Yamada, Kuriko; Otsubo, Tetsuya; Haruna, Masayo; Kutsuwa, Emiko; Tamura, Hatsue; Chemical Communications  (2001) 69–; doi:10.1039/b008103p

data_7111163
_publ_section_title
;
 A novel Lewis acid-promoted enyne cycloisomerization of
 triester-substituted alkenes
;
_journal_issue                   1
_journal_name_full               'Chemical Communications'
_journal_page_first              69
_journal_paper_doi               10.1039/b008103p
_journal_year                    2001
_chemical_formula_sum            'C18 H18 O6'
_chemical_formula_weight         330.34
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_audit_creation_date             'Oct 10 2000'
_audit_creation_method           'by teXsan'
_cell_angle_alpha                90
_cell_angle_beta                 100.513(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.1206(3)
_cell_length_b                   10.5914(3)
_cell_length_c                   19.7984(7)
_cell_measurement_reflns_used    10119
_cell_measurement_temperature    296.2
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.2
_cell_volume                     1674.25(10)
_diffrn_measured_fraction_theta_full 0.9992
_diffrn_measured_fraction_theta_max 0.9992
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID Imaging Plate'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.025
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            3845
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.310
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.18
_refine_diff_density_min         -0.19
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.780
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     217
_refine_ls_number_reflns         2473
_refine_ls_R_factor_gt           0.047
_refine_ls_shift/su_max          0.0006
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[\s^2^(Fo) + 0.00031|Fo|^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.052
_reflns_number_gt                2473
_reflns_number_total             3845
_reflns_threshold_expression     F^2^>2\s(F^2^)
_cod_data_source_file            b008103psup1.cif
_cod_data_source_block           C18H18O6
_cod_original_cell_volume        1674.2(1)
_cod_original_formula_sum        'C18 H18 O6 '
_cod_database_code               7111163