Stoichiometric and catalytic reductive aldol cyclizations of alkynediones induced by Stryker's reagent
Chiu, Pauline; Leung, Sze Kar; Chemical Communications  (2004) 2308–2309; doi:10.1039/b407842j

data_7111386
_publ_section_title
;
 Stoichiometric and catalytic reductive aldol cyclizations of alkynediones
 induced by Stryker's reagent
;
_journal_issue                   20
_journal_name_full               'Chemical Communications'
_journal_page_first              2308
_journal_page_last               2309
_journal_paper_doi               10.1039/b407842j
_journal_year                    2004
_chemical_formula_moiety         'C14 H20 O4'
_chemical_formula_sum            'C14 H20 O4'
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_cell_angle_beta                 76.61(3)
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_cell_length_a                   7.3680(15)
_cell_length_b                   9.1860(18)
_cell_length_c                   10.640(2)
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_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      0
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_computing_cell_refinement       Scalepack
_computing_data_collection       Marcontrol
_computing_data_reduction        Denzo
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.763
_diffrn_measured_fraction_theta_max 0.763
_diffrn_measurement_device_type  'marresearch IPDS mar300'
_diffrn_measurement_method       Oscillation
_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  0.0234
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_diffrn_reflns_limit_h_min       -8
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_diffrn_reflns_limit_l_min       -11
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_diffrn_reflns_theta_full        25.53
_diffrn_reflns_theta_max         25.53
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_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.9825
_exptl_absorpt_correction_T_min  0.9654
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.226
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
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_refine_ls_extinction_method     none
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_refine_ls_matrix_type           full
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_refine_ls_R_factor_all          0.0743
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_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^)+(0.1240P)^2^+0.0838P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1825
_refine_ls_wR_factor_ref         0.1917
_reflns_number_gt                1500
_reflns_number_total             1933
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b407842jsup1.cif
_cod_data_source_block           mar269a
_cod_original_cell_volume        683.7(2)
_cod_database_code               7111386