Stereoselective α,α'-Annelation Reactions of 1,3-Dioxan-5-ones
Tyrone C. Casey; Julie Carlisle; Patrizia Tisselli; Louise Male; Neil Spencer; Richard S. Grainger; Journal of Organic Chemistry 75 (2010) 7461–7464; doi:10.1021/jo101531b

data_4025765
_publ_contact_author_address
;
School of Chemistry, University of Birmingham, Edgbaston,
Birmingham, B15 2TT, UK.
;
_publ_contact_author_email       r.s.grainger@bham.ac.uk
_publ_contact_author_fax         '0121 414 4403'
_publ_contact_author_name        'Richard S. Grainger'
_publ_contact_author_phone       '0121 414 4465'
_publ_section_title
;
 Stereoselective \a,\a'-Annelation Reactions of 1,3-Dioxan-5-ones
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_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              7461
_journal_page_last               7464
_journal_paper_doi               10.1021/jo101531b
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C11 H16 O5'
_chemical_formula_sum            'C11 H16 O5'
_chemical_formula_weight         228.24
_chemical_name_systematic
;
Methyl 3,3-Dimethyl-9-oxo-2,4-dioxabicyclo[3.3.1]nonane-7\a-carboxylate
;
_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                108.7380(10)
_cell_angle_beta                 107.450(2)
_cell_angle_gamma                94.121(2)
_cell_formula_units_Z            2
_cell_length_a                   7.9524(2)
_cell_length_b                   8.2007(2)
_cell_length_c                   9.4468(2)
_cell_measurement_reflns_used    9863
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     546.84(2)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution
;
SIR92, (Altomare, Cascarano, Giacovazzo, Guagliardi, Burla, Polidori &
Camalli, 1994)
;
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean '4096x4096pixels / 62x62mm'
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type
'Bruker-Nonius APEX II CCD camera on \k-goniostat'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  '10cm confocal mirrors'
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0379
_diffrn_reflns_av_sigmaI/netI    0.0280
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            13210
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.74
_exptl_absorpt_coefficient_mu    0.109
_exptl_absorpt_correction_T_max  0.9913
_exptl_absorpt_correction_T_min  0.9891
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.386
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             244
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.334
_refine_diff_density_min         -0.237
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     148
_refine_ls_number_reflns         2497
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0462
_refine_ls_R_factor_gt           0.0385
_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^)+(0.0311P)^2^+0.2891P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0871
_refine_ls_wR_factor_ref         0.0933
_reflns_number_gt                2185
_reflns_number_total             2497
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            jo101531b_si_001.cif
_cod_data_source_block           5a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               4025765