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_7111385
_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         'C22 H26 N4 O7'
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_cell_angle_beta                 85.05(3)
_cell_angle_gamma                89.89(3)
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_cell_length_b                   8.6090(17)
_cell_length_c                   18.302(4)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    301(2)
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     1140.9(4)
_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      301(2)
_diffrn_measured_fraction_theta_full 0.725
_diffrn_measured_fraction_theta_max 0.725
_diffrn_measurement_device_type  'marresearach 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     0.71069
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_diffrn_reflns_limit_l_min       -21
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_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         1.15
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.335
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.6
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_refine_diff_density_min         -0.273
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
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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^)+(0.1350P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1769
_refine_ls_wR_factor_ref         0.1912
_reflns_number_gt                2179
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_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b407842jsup1.cif
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