A novel domino cyclization for the stereoselective synthesis of indeno[2,1-c]pyran and cyclopenta[c]pyran derivatives.
Subba Reddy, B. V.; Prudhvi Raju, N.; Someswarao, B.; Mohan Reddy, B. Jagan; Sridhar, B.; Marumudi, Kanakaraju; Kunwar, A. C.; Organic & biomolecular chemistry 13 (2015) 4733–4736; doi:10.1039/c5ob00376h

data_7154372
_publ_section_title
;
 A novel domino cyclization for the stereoselective synthesis of
 indeno[2,1-c]pyran and cyclopenta[c]pyran derivatives.
;
_journal_issue                   16
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              4733
_journal_page_last               4736
_journal_paper_doi               10.1039/c5ob00376h
_journal_volume                  13
_journal_year                    2015
_chemical_formula_sum            'C20 H18 Cl2 O2'
_chemical_formula_weight         361.24
_space_group_crystal_system      monoclinic
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_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2015-01-22 deposited with the CCDC.
2015-03-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
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_cell_angle_gamma                90
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_cell_length_c                   14.5872(18)
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_cell_volume                     1721.3(4)
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_computing_publication_material  SHELXL-2014/7
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-2014/7 (Sheldrick, 2015)'
_diffrn_ambient_temperature      294(2)
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_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'Bruker SMART APEX CCD area-detector'
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area-detector'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_monochromator  graphite
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_refine_ls_extinction_method     none
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_refine_ls_R_factor_all          0.0637
_refine_ls_R_factor_gt           0.0518
_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^)+(0.0571P)^2^+0.5179P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1188
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_reflns_Friedel_coverage         0.000
_reflns_number_gt                2896
_reflns_number_total             3468
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5ob00376h2.cif
_cod_data_source_block           ax73m
_cod_depositor_comments          'Adding full bibliography for 7154372.cif.'
_cod_database_code               7154372
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              20757