Intramolecular azide-alkyne cycloaddition for the fast assembly of structurally diverse, tricyclic 1,2,3-triazoles.
Oliva, Ana I.; Christmann, Ute; Font, Daniel; Cuevas, Félix; Ballester, Pablo; Buschmann, Helmut; Torrens, Antoni; Yenes, Susana; Pericàs, Miquel A; Organic letters 10 (2008) 1617–1619; doi:10.1021/ol800291t

data_1504613
_publ_contact_author
;
    Cuevas, Felix
    Institute of Chemical Research of Catalonia (ICIQ)
    Avd. Pa\=isos Catalans 16
    E-43007 Tarragona, Spain
;
_publ_section_title
;
 Intramolecular azide-alkyne cycloaddition for the fast assembly of
 structurally diverse, tricyclic 1,2,3-triazoles.
;
_journal_issue                   8
_journal_name_full               'Organic letters'
_journal_page_first              1617
_journal_page_last               1619
_journal_paper_doi               10.1021/ol800291t
_journal_volume                  10
_journal_year                    2008
_chemical_absolute_configuration ad
_chemical_formula_sum            'C8 H16 Cl2 N4 O2'
_chemical_formula_weight         271.15
_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                 91.483(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.7790(3)
_cell_length_b                   6.6026(3)
_cell_length_c                   13.2443(6)
_cell_measurement_reflns_used    9759
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      38.19
_cell_measurement_theta_min      3.01
_cell_volume                     592.60(5)
_computing_cell_refinement       'Bruker-Nonius Apex v1.0-22 2002'
_computing_data_collection       'Bruker-Nonius Apex v1.0-22 2002'
_computing_data_reduction        'SAINT+ Version 7.06A Bruker-Nonius, 2004'
_computing_molecular_graphics    'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_publication_material  'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_structure_refinement  'Shelxtl Version 6.12 (Sheldrick, 2001)'
_computing_structure_solution    'Shelxtl Version 6.12 (Sheldrick, 2001)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_detector_type            '4K CCD area detector APEX II'
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'Kappa 4-axis goniometer bruker-nonius'
_diffrn_measurement_method
;
 Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support
'magnetic support whith 10 micron nylon fiber cryoloop'
_diffrn_radiation_monochromator  'Multilayer Montel 200 mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0435
_diffrn_reflns_av_sigmaI/netI    0.0429
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            12315
_diffrn_reflns_theta_full        38.25
_diffrn_reflns_theta_max         38.25
_diffrn_reflns_theta_min         3.01
_diffrn_source                   'rotating anode X-ray tube'
_diffrn_source_current           70
_diffrn_source_power             50
_diffrn_source_size              '3 mm x 0.3 mm fine focus'
_diffrn_source_type              'Bruker-Nonius FR 591'
_exptl_absorpt_coefficient_mu    0.540
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.95350
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
; 
 SADABS Version 2.1 2003 Bruker-Nonius
 Blessing, Acta Cryst. (1995) A51 33-38
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.520
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             284
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.821
_refine_diff_density_min         -0.362
_refine_diff_density_rms         0.089
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.117
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     147
_refine_ls_number_reflns         4670
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.117
_refine_ls_R_factor_all          0.0405
_refine_ls_R_factor_gt           0.0390
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0537P)^2^+0.1865P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1070
_refine_ls_wR_factor_ref         0.1079
_reflns_number_gt                4488
_reflns_number_total             4670
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol800291t-file001.cif
_cod_data_source_block           ibp21
_cod_depositor_comments
;
The following automatic conversions were performed:
'_diffrn_measurement_specimen_suppport' tag replaced with
'_diffrn_measurement_specimen_support'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               1504613