Rearrangements of α-Diazo-β-hydroxyketones for the Synthesis of Bicyclo[m.n.1]alkanones.
Li, Zhengning; Lam, Shuk Mei; Ip, Ignatius; Wong, Wing-Tak; Chiu, Pauline; Organic letters 19 (2017) 4464–4467; doi:10.1021/acs.orglett.7b01963

data_1547056
_publ_section_title
;
 Rearrangements of \a-Diazo-\b-hydroxyketones for the Synthesis of
 Bicyclo[m.n.1]alkanones.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              4464
_journal_page_last               4467
_journal_paper_doi               10.1021/acs.orglett.7b01963
_journal_volume                  19
_journal_year                    2017
_chemical_formula_moiety         'C13 H18 O5'
_chemical_formula_sum            'C13 H18 O5'
_chemical_formula_weight         254.27
_chemical_name_systematic
; 
(1R*,5R*,6R*)-ethyl-5-methoxy-7,9-dioxobicyclo[4.2.1]nonane-1-carboxylate
;
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 92.659(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.2449(4)
_cell_length_b                   16.6852(11)
_cell_length_c                   13.0222(9)
_cell_measurement_reflns_used    9627
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      25.02
_cell_measurement_theta_min      1.98
_cell_volume                     1355.42(16)
_computing_cell_refinement       'SAINT (Bruker AXS Inc, 2006)'
_computing_data_collection       'SMART (Bruker AXS Inc, 1998)'
_computing_data_reduction
'SAINT & CrystalStructure (Rigaku/MSC and Rigaku Corporation, 2006)'
_computing_molecular_graphics
'ORTEP-II (Johnson, 1976) & MERCURY (Macrae et al., 2008)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD'
_diffrn_measurement_method       '\w scan'
_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  0.0151
_diffrn_reflns_av_sigmaI/netI    0.0151
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            7432
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.90
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.095
_exptl_absorpt_correction_T_max  0.9915
_exptl_absorpt_correction_T_min  0.9628
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2004)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.246
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.188
_refine_diff_density_min         -0.144
_refine_diff_density_rms         0.031
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     203
_refine_ls_number_reflns         2383
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0449
_refine_ls_R_factor_gt           0.0382
_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^)+(0.0548P)^2^+0.2552P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1016
_refine_ls_wR_factor_ref         0.1069
_reflns_number_gt                2033
_reflns_number_total             2383
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ol7b01963_si_006.cif
_cod_data_source_block           wt2254w-shelxl
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1547056