Construction of stereodefined 1,1,2,2-tetrasubstituted cyclopropanes by acid catalyzed reaction of aryldiazoacetates and alpha-substituted acroleins.
Hashimoto, Takuya; Naganawa, Yuki; Kano, Taichi; Maruoka, Keiji; Chemical communications (Cambridge, England)  (2007) 5143–5145; doi:10.1039/b715803c

data_7102382
_publ_section_title
;
 Construction of stereodefined 1,1,2,2-tetrasubstituted cyclopropanes
 by acid catalyzed reaction of aryldiazoacetates and alpha-substituted
 acroleins.
;
_journal_issue                   48
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              5143
_journal_page_last               5145
_journal_paper_doi               10.1039/b715803c
_journal_year                    2007
_chemical_formula_moiety         'C25 H29 N O6 '
_chemical_formula_sum            'C25 H29 N O6'
_chemical_formula_weight         439.51
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_cell_angle_alpha                90.0000
_cell_angle_beta                 91.016(12)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   11.040(3)
_cell_length_b                   7.235(2)
_cell_length_c                   28.628(7)
_cell_measurement_reflns_used    15384
_cell_measurement_temperature    298.1
_cell_measurement_theta_max      27.6
_cell_measurement_theta_min      3.2
_cell_volume                     2286.3(11)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        CrystalStructure
_computing_publication_material  'CrystalStructure 3.8'
_computing_structure_refinement  SHELXL
_computing_structure_solution    SIR2002
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.082
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            21055
_diffrn_reflns_theta_full        27.44
_diffrn_reflns_theta_max         27.44
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       unknown
_exptl_crystal_F_000             936.00
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.35
_refine_diff_density_min         -0.41
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     290
_refine_ls_number_reflns         5179
_refine_ls_R_factor_gt           0.0506
_refine_ls_shift/su_max          0.0000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0828P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1576
_reflns_number_gt                3772
_reflns_number_total             5179
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            b715803c.txt
_cod_data_source_block           '_hashimoto6204-3'
_cod_original_formula_sum        'C25 H29 N O6 '
_cod_database_code               7102382