Rhodium(II)-catalysed tandem aziridination and ring-opening: stereoselective synthesis of functionalised tetrahydrofurans
William P. Unsworth; Nicola Clark; Thomas O. Ronson; Kiri Stevens; Amber L. Thompson; Scott G. Lamont; Jeremy Robertson; Chem.Commun. 50 (2014) 11393–; doi:10.1039/C4cc05159A

data_7115665
_publ_section_title
;
 Rhodium(II)-catalysed tandem aziridination and ring-opening:
 stereoselective synthesis of functionalised tetrahydrofurans
;
_journal_name_full               Chem.Commun.
_journal_page_first              11393
_journal_paper_doi               10.1039/C4cc05159A
_journal_volume                  50
_journal_year                    2014
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C10 H15 N1 O5'
_chemical_formula_sum            'C10 H15 N O5'
_chemical_formula_weight         229.23
_chemical_melting_point          ?
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     other
_audit_creation_date             14-07-04
_audit_creation_method           CRYSTALS_ver_14.40
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.7625(2)
_cell_length_b                   8.6145(3)
_cell_length_c                   21.3435(8)
_cell_measurement_reflns_used    1400
_cell_measurement_temperature    150
_cell_measurement_theta_max      27
_cell_measurement_theta_min      5
_cell_volume                     1059.51(7)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2001).'
_computing_data_reduction        'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'Superflip (Palatinus & Chapuis, 2007)'
_diffrn_ambient_temperature      150
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.033
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            6899
_diffrn_reflns_theta_full        27.474
_diffrn_reflns_theta_max         27.474
_diffrn_reflns_theta_min         5.131
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.116
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.93
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            clear_pale_colourless
_exptl_crystal_density_diffrn    1.437
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             488
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.44
_refine_diff_density_min         -0.51
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.9596
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     145
_refine_ls_number_reflns         1428
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0719
_refine_ls_R_factor_gt           0.0650
_refine_ls_shift/su_max          0.0002511
_refine_ls_shift/su_mean         0.0000265
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 66.1 104. 55.1 15.5 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1851
_refine_ls_wR_factor_gt          0.1718
_refine_ls_wR_factor_ref         0.1851
_reflns_limit_h_max              7
_reflns_limit_h_min              0
_reflns_limit_k_max              11
_reflns_limit_k_min              0
_reflns_limit_l_max              27
_reflns_limit_l_min              0
_reflns_number_gt                1262
_reflns_number_total             1428
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   2.32
_oxford_diffrn_Wilson_scale      0.98
_oxford_refine_ls_r_factor_ref   0.0719
_oxford_refine_ls_scale          0.984(12)
_oxford_reflns_number_all        1428
_oxford_reflns_threshold_expression_ref I>-3.0\s(I)
_oxford_structure_analysis_title 007jr11
_cod_data_source_file            c4cc05159a2.cif
_cod_data_source_block           26
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

'_atom_sites_solution_primary'
value 'Other' changed to 'other' 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 2827 2014-09-09 07:05:25Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_original_formula_sum        'C10 H15 N1 O5'
_cod_database_code               7115665
_iucr_refine_instruction_details_constraints
;
BLOCK SCALE X'S, U'S 
RIDE C   (   2,X'S) H   (  21,X'S) H   (  22,X'S) 
RIDE C   (   3,X'S) H   (  31,X'S) 
RIDE C   (   6,X'S) H   (  61,X'S) H   (  63,X'S) H   (  62,X'S) 
RIDE C   (   7,X'S) H   (  71,X'S) H   (  72,X'S) H   (  73,X'S) 
RIDE C   (   9,X'S) H   (  91,X'S) 
RIDE C   (  10,X'S) H   ( 101,X'S) 
RIDE C   (  11,X'S) H   ( 111,X'S) 
RIDE C   (  12,X'S) H   ( 122,X'S) H   ( 121,X'S) 
RIDE N   (  16,X'S) H   ( 161,X'S) 
END                                                                             
;
_iucr_refine_instruction_details_restraints
;
NO 
REM   HREST   START (DO NOT REMOVE THIS LINE) 
REM   HREST   END (DO NOT REMOVE THIS LINE) 
END                                                                             
;