Highly Diastereoselective One-Pot Synthesis of Spiro{cyclopenta[a]indene-2,2'-indene}diones from 1-Indanones and Aromatic Aldehydes
Pelayo Camps; Luis R. Domingo; Xavier Formosa; Carles Galdeano; Diana González; Diego Muñoz-Torrero; Sílvia Segalés; Mercè Font-Bardia; Xavier Solans; Journal of Organic Chemistry 71 (2006) 3464–3471; doi:10.1021/jo0600095

data_4021654
_publ_section_title
;
 Highly Diastereoselective One-Pot Synthesis of
 Spiro{cyclopenta[a]indene-2,2'-indene}diones from 1-Indanones
 and Aromatic Aldehydes
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              3464
_journal_page_last               3471
_journal_paper_doi               10.1021/jo0600095
_journal_volume                  71
_journal_year                    2006
_chemical_formula_moiety         'C34 H30 N2 O6, H2 O'
_chemical_formula_sum            'C34 H32 N2 O7'
_chemical_formula_weight         580.62
_chemical_melting_point          263.5(5)
_chemical_name_systematic
;         
(1SR,2RS,3RS,3aSR,8aSR)-5,6,5,6-tetramethoxy-1,3-di(4-pyridyl)-
3a,8a-dihydrospiro{cyclopenta[a]indene-2,2(1H,3H)-indene}-1,8(3H)-dione
;
_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                104.50(6)
_cell_angle_beta                 106.22(4)
_cell_angle_gamma                100.07(9)
_cell_formula_units_Z            2
_cell_length_a                   9.519(8)
_cell_length_b                   11.715(14)
_cell_length_c                   14.964(5)
_cell_measurement_temperature    293(2)
_cell_volume                     1497(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'ENRAF-NONIUS CAD4'
_diffrn_measurement_method       '\w-2\Q scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0624
_diffrn_reflns_av_sigmaI/netI    10.3849
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            8664
_diffrn_reflns_theta_full        29.97
_diffrn_reflns_theta_max         29.97
_diffrn_reflns_theta_min         2.29
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             612
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.172
_refine_diff_density_min         -0.175
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.671
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     397
_refine_ls_number_reflns         8645
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.671
_refine_ls_R_factor_all          0.6403
_refine_ls_R_factor_gt           0.0486
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0570
_refine_ls_wR_factor_ref         0.1663
_reflns_number_gt                7797
_reflns_number_total             8645
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo0600095si20060104_111727.cif
_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.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value '263-264' was changed to '263.5(5)' -
the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               4021654