Rh-Catalyzed cyclization of 2,3-allenoic acids in the presence of 2,3-allenols.
Fan, Junjie; Fu, Chunling; Wu, Xiaoyan; Ma, Shengming; Chemical communications (Cambridge, England) 57 (2021) 10411–10414; doi:10.1039/d1cc04367f

data_7128919
_publ_section_title
;
 Rh-Catalyzed cyclization of 2,3-allenoic acids in the presence of
 2,3-allenols.
;
_journal_issue                   80
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              10411
_journal_page_last               10414
_journal_paper_doi               10.1039/d1cc04367f
_journal_volume                  57
_journal_year                    2021
_chemical_formula_moiety         'C18 H20 O3'
_chemical_formula_sum            'C18 H20 O3'
_chemical_formula_weight         284.34
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-10-31
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2020-05-23 deposited with the CCDC.	2021-09-01 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 94.1300(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.1699(4)
_cell_length_b                   6.7473(2)
_cell_length_c                   16.9652(6)
_cell_measurement_reflns_used    5652
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      27.09
_cell_measurement_theta_min      2.41
_cell_volume                     1503.63(8)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      170.0
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0303
_diffrn_reflns_av_unetI/netI     0.0263
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            12779
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.105
_diffrn_reflns_theta_min         2.407
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6799
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1823 before and 0.0443 after correction.
The Ratio of minimum to maximum transmission is 0.9120.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.256
_exptl_crystal_description       needle
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.212
_refine_diff_density_min         -0.162
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     193
_refine_ls_number_reflns         3318
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0475
_refine_ls_R_factor_gt           0.0387
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0504P)^2^+0.4536P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0990
_refine_ls_wR_factor_ref         0.1060
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2795
_reflns_number_total             3318
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1cc04367f2.cif
_cod_data_source_block           191031_fjj_2_073_0m
_cod_depositor_comments          'Adding full bibliography for 7128919.cif.'
_cod_database_code               7128919
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.992
_shelx_estimated_absorpt_t_min   0.975
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C11(H11A,H11B), C14(H14A,H14B), C15(H15A,H15B)
2.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C4(H4), C5(H5), C8(H8)
2.c Idealised Me refined as rotating group:
 C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C18(H18A,H18B,H18C)
;
_shelx_res_checksum              5867
_olex2_submission_special_instructions 'No special instructions were received'