Constructing fused N-heterocycles from unprotected mesoionic N-heterocyclic olefins and organic azides <i>via</i> diazo transfer.
Liang, Qiuming; Hayashi, Kasumi; Zeng, Yimin; Jimenez-Santiago, Jose L; Song, Datong; Chemical communications (Cambridge, England) 57 (2021) 6137–6140; doi:10.1039/d1cc02245h

data_7128336
_publ_section_title
;
 Constructing fused N-heterocycles from unprotected mesoionic
 N-heterocyclic olefins and organic azides <i>via</i> diazo transfer.
;
_journal_issue                   50
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              6137
_journal_page_last               6140
_journal_paper_doi               10.1039/d1cc02245h
_journal_volume                  57
_journal_year                    2021
_chemical_formula_sum            'C19 H19 N5'
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_audit_update_record
;
2021-04-08 deposited with the CCDC.	2021-05-19 downloaded from the CCDC.
;
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_diffrn_reflns_Laue_measured_fraction_full 0.996
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_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            yellow
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_exptl_crystal_size_max          0.300
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_refine_ls_extinction_coef       0.025(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
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_refine_ls_number_reflns         3847
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.1040
_refine_ls_R_factor_gt           0.0574
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0372P)^2^+0.1692P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1310
_refine_ls_wR_factor_ref         0.1509
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2386
_reflns_number_total             3847
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1cc02245h2.cif
_cod_data_source_block           wl438
_cod_depositor_comments
'Adding full bibliography for 7128333--7128355.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7128336
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.977
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_shelx_res_checksum              32100
_shelx_hkl_checksum              30068