Carbolithiation of N-alkenyl ureas and N-alkenyl carbamates.
Lefranc, Julien; Minassi, Alberto; Clayden, Jonathan; Beilstein journal of organic chemistry 9 (2013) 628–632; doi:10.3762/bjoc.9.70

data_4029693
_publ_contact_author
; 
    Madeleine Helliwell 
;
_publ_section_title
;
 Carbolithiation of N-alkenyl ureas and N-alkenyl carbamates.
;
_journal_name_full               'Beilstein journal of organic chemistry'
_journal_page_first              628
_journal_page_last               632
_journal_paper_doi               10.3762/bjoc.9.70
_journal_volume                  9
_journal_year                    2013
_chemical_formula_sum            'C15 H21 N O2'
_chemical_formula_weight         247.33
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 116.762(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.626(4)
_cell_length_b                   25.042(12)
_cell_length_c                   8.473(4)
_cell_measurement_reflns_used    788
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.94
_cell_measurement_theta_min      2.69
_cell_volume                     1444.8(12)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0487
_diffrn_reflns_av_sigmaI/netI    0.0606
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            6817
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.44
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.692
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.137
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.231
_refine_diff_density_min         -0.214
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     336
_refine_ls_number_reflns         2591
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0567
_refine_ls_R_factor_gt           0.0456
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0575P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0991
_refine_ls_wR_factor_ref         0.1039
_reflns_number_gt                2272
_reflns_number_total             2591
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1860-5397-9-70-S3.txt
_cod_data_source_block           s3386abs
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/Beilstein/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               4029693