Phosphine-catalyzed activation of cyclopropenones: a versatile C<sub>3</sub> synthon for (3+2) annulations with unsaturated electrophiles.
He, Xin; Ma, Pengchen; Tang, Yuhai; Li, Jing; Shen, Shenyu; Lear, Martin J.; Houk, K. N.; Xu, Silong; Chemical science 13 (2022) 12769–12775; doi:10.1039/d2sc04092a

data_1567833
_publ_section_title
;
 Phosphine-catalyzed activation of cyclopropenones: a versatile
 C<sub>3</sub> synthon for (3+2) annulations with unsaturated
 electrophiles.
;
_journal_issue                   43
_journal_name_full               'Chemical science'
_journal_page_first              12769
_journal_page_last               12775
_journal_paper_doi               10.1039/d2sc04092a
_journal_volume                  13
_journal_year                    2022
_chemical_formula_moiety         'C25 H19 N O2'
_chemical_formula_sum            'C25 H19 N O2'
_chemical_formula_weight         365.41
_chemical_name_systematic        HX-91
_space_group_crystal_system      trigonal
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3 :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2021-10-11
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-10-29 deposited with the CCDC.	2022-10-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            18
_cell_length_a                   32.848(15)
_cell_length_b                   32.848(15)
_cell_length_c                   10.842(9)
_cell_measurement_reflns_used    6316
_cell_measurement_temperature    296.15
_cell_measurement_theta_max      25.339
_cell_measurement_theta_min      2.362
_cell_volume                     10131(11)
_computing_cell_refinement       'SAINT V8.18C (?, 2016)'
_computing_data_reduction        'SAINT V8.18C (?, 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      296.15
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0948
_diffrn_reflns_av_unetI/netI     0.0548
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -39
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       -39
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            22203
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.435
_diffrn_reflns_theta_min         2.010
_exptl_absorpt_coefficient_mu    0.068
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.4084
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0940 before and 0.0520 after correction.
The Ratio of minimum to maximum transmission is 0.5480.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.078
_exptl_crystal_description       block
_exptl_crystal_F_000             3456
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.142
_refine_diff_density_min         -0.217
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         4144
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0767
_refine_ls_R_factor_gt           0.0504
_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^)+(0.0579P)^2^+5.4510P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1233
_refine_ls_wR_factor_ref         0.1450
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2828
_reflns_number_total             4144
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2sc04092a2.cif
_cod_data_source_block           mo_hx_91_20211009_0m
_cod_depositor_comments
;
Adding full bibliography for 1567832--1567834.cif.

2025-07-10
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_formula_sum            'C450 H342 N18 O36'
_cod_original_formula_weight         6577.40
_cod_original_formula_moiety         '18(C25 H19 N O2)'
_cod_original_formula_units_Z            1
_cod_original_cell_volume        10130(19)
_cod_original_sg_symbol_H-M      'R -3'
_cod_database_code               1567833
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.986
_shelx_estimated_absorpt_t_min   0.984
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C00B(H00B)
2.b Aromatic/amide H refined with riding coordinates:
 C00A(H00A), C00C(H00C), C00E(H00E), C00G(H00G), C00H(H00H), C00I(H00I),
 C00J(H00J), C00K(H00K), C00L(H00L), C00M(H00M), C00N(H00N), C00O(H00O),
 C00Q(H00Q), C00R(H00R), C00S(H00S)
2.c Idealised Me refined as rotating group:
 C00P(H00D,H00F,H00P)
;
_shelx_res_checksum              92562
_shelx_fab_checksum              96423
_olex2_submission_original_sample_id HX-91
_olex2_submission_special_instructions 'No special instructions were received'