A P-chiral phosphinite borane complex, C17H20BF3NOP, derived from (2R,4S,5R)-2-chloro-3,4-dimethyl-5-phenyl-1,3,2-oxazaphospholidine and [4-(trifluoromethyl)phenyl]magnesium bromide is reported. The absolute configuration (R at P) is deduced from the known chirality of (1R,2S)-ephedrine and confirmed by the refinement.
Supporting information
CCDC reference: 234914
Key indicators
- Single-crystal X-ray study
- T = 293 K
- Mean (C-C) = 0.004 Å
- R factor = 0.048
- wR factor = 0.134
- Data-to-parameter ratio = 16.7
checkCIF/PLATON results
No syntax errors found
Alert level B
PLAT063_ALERT_3_B Crystal Probably too Large for Beam Size ....... 1.00 mm
PLAT241_ALERT_2_B Check High U(eq) as Compared to Neighbors .... F1
PLAT242_ALERT_2_B Check Low U(eq) as Compared to Neighbors .... C7
Alert level C
PLAT241_ALERT_2_C Check High U(eq) as Compared to Neighbors .... F1'
PLAT241_ALERT_2_C Check High U(eq) as Compared to Neighbors .... F3
PLAT241_ALERT_2_C Check High U(eq) as Compared to Neighbors .... F3'
PLAT301_ALERT_3_C Main Residue Disorder ......................... 11.00 Perc.
Alert level G
REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is
correct. If it is not, please give the correct count in the
_publ_section_exptl_refinement section of the submitted CIF.
From the CIF: _diffrn_reflns_theta_max 27.03
From the CIF: _reflns_number_total 4085
Count of symmetry unique reflns 2339
Completeness (_total/calc) 174.65%
TEST3: Check Friedels for noncentro structure
Estimate of Friedel pairs measured 1746
Fraction of Friedel pairs measured 0.746
Are heavy atom types Z>Si present yes
0 ALERT level A = In general: serious problem
3 ALERT level B = Potentially serious problem
4 ALERT level C = Check and explain
1 ALERT level G = General alerts; check
0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
5 ALERT type 2 Indicator that the structure model may be wrong or deficient
2 ALERT type 3 Indicator that the structure quality may be low
1 ALERT type 4 Improvement, methodology, query or suggestion
Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell refinement: CAD-4 EXPRESS; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Crystal data top
C17H20BF3NOP | F(000) = 736 |
Mr = 353.13 | Dx = 1.254 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 25 reflections |
a = 9.1911 (16) Å | θ = 37.7–49.6° |
b = 12.8581 (17) Å | µ = 0.18 mm−1 |
c = 15.827 (2) Å | T = 293 K |
V = 1870.4 (5) Å3 | Rod, colourless |
Z = 4 | 1.00 × 0.75 × 0.40 mm |
Data collection top
Enraf–Nonius CAD-4 diffractometer | θmax = 27.0°, θmin = 3.0° |
non–profiled ω/2θ scans | h = −11→4 |
6482 measured reflections | k = −16→16 |
4085 independent reflections | l = −20→0 |
2990 reflections with I > 2σ(I) | 2 standard reflections every 123 reflections |
Rint = 0.023 | intensity decay: 4% |
Refinement top
Refinement on F2 | H-atom parameters constrained |
Least-squares matrix: full | w = 1/[σ2(Fo2) + (0.0841P)2 + 0.0091P] where P = (Fo2 + 2Fc2)/3 |
R[F2 > 2σ(F2)] = 0.048 | (Δ/σ)max < 0.001 |
wR(F2) = 0.134 | Δρmax = 0.20 e Å−3 |
S = 1.04 | Δρmin = −0.39 e Å−3 |
4085 reflections | Absolute structure: Flack (1983), 1755 Friedel pairs |
244 parameters | Absolute structure parameter: 0.04 (12) |
6 restraints | |
Special details top
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell e.s.d.'s are taken
into account individually in the estimation of e.s.d.'s in distances, angles
and torsion angles; correlations between e.s.d.'s in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s.
planes. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | Occ. (<1) |
P1 | 0.05132 (7) | 0.41982 (4) | 0.24575 (4) | 0.05432 (18) | |
F1 | 0.1096 (10) | 0.1783 (10) | 0.6142 (7) | 0.170 (6) | 0.50 |
F2 | −0.1108 (10) | 0.1924 (11) | 0.6150 (5) | 0.136 (3) | 0.50 |
F3 | 0.0151 (15) | 0.3200 (7) | 0.6588 (4) | 0.144 (5) | 0.50 |
F1' | −0.1285 (9) | 0.2635 (10) | 0.6340 (6) | 0.150 (4) | 0.50 |
F2' | 0.0946 (12) | 0.2859 (8) | 0.6566 (6) | 0.128 (3) | 0.50 |
F3' | 0.030 (2) | 0.1475 (4) | 0.6103 (4) | 0.155 (5) | 0.50 |
O1 | 0.0408 (2) | 0.32031 (11) | 0.18536 (10) | 0.0609 (4) | |
N1 | −0.1053 (3) | 0.47199 (15) | 0.21583 (13) | 0.0645 (6) | |
C1 | 0.0358 (3) | 0.36700 (18) | 0.35136 (14) | 0.0554 (6) | |
C2 | 0.0774 (3) | 0.4256 (2) | 0.42013 (16) | 0.0687 (7) | |
H2 | 0.1135 | 0.4924 | 0.4116 | 0.082* | |
C3 | 0.0665 (4) | 0.3875 (2) | 0.50128 (16) | 0.0721 (8) | |
H3 | 0.0941 | 0.4284 | 0.5470 | 0.087* | |
C4 | 0.0148 (3) | 0.2887 (2) | 0.51408 (16) | 0.0649 (7) | |
C5 | −0.0272 (4) | 0.2288 (2) | 0.44695 (17) | 0.0813 (9) | |
H5 | −0.0610 | 0.1615 | 0.4560 | 0.098* | |
C6 | −0.0194 (4) | 0.2677 (2) | 0.36593 (16) | 0.0753 (8) | |
H6 | −0.0512 | 0.2274 | 0.3207 | 0.090* | |
C7 | 0.0032 (4) | 0.2464 (3) | 0.60206 (18) | 0.0868 (10) | |
C8 | −0.1713 (4) | 0.5531 (2) | 0.2686 (2) | 0.0953 (10) | |
H8A | −0.2610 | 0.5756 | 0.2435 | 0.143* | |
H8B | −0.1058 | 0.6110 | 0.2729 | 0.143* | |
H8C | −0.1901 | 0.5257 | 0.3240 | 0.143* | |
C9 | −0.3173 (4) | 0.4336 (3) | 0.1247 (3) | 0.1084 (12) | |
H9A | −0.3770 | 0.4821 | 0.1552 | 0.163* | |
H9B | −0.3767 | 0.3778 | 0.1038 | 0.163* | |
H9C | −0.2716 | 0.4685 | 0.0781 | 0.163* | |
C10 | −0.2013 (3) | 0.3901 (2) | 0.18314 (19) | 0.0748 (8) | |
H10 | −0.2493 | 0.3560 | 0.2310 | 0.090* | |
C11 | −0.0975 (3) | 0.3114 (2) | 0.14096 (17) | 0.0652 (7) | |
H11 | −0.1360 | 0.2413 | 0.1508 | 0.078* | |
C12 | −0.0717 (3) | 0.32381 (19) | 0.04783 (16) | 0.0635 (6) | |
C13 | 0.0167 (3) | 0.4010 (2) | 0.01573 (17) | 0.0714 (8) | |
H13 | 0.0623 | 0.4469 | 0.0526 | 0.086* | |
C14 | 0.0386 (4) | 0.4112 (3) | −0.06980 (19) | 0.0904 (9) | |
H14 | 0.0971 | 0.4647 | −0.0901 | 0.108* | |
C15 | −0.0243 (5) | 0.3440 (4) | −0.1250 (2) | 0.1023 (13) | |
H15 | −0.0060 | 0.3496 | −0.1826 | 0.123* | |
C16 | −0.1139 (5) | 0.2690 (3) | −0.0955 (2) | 0.1077 (13) | |
H16 | −0.1605 | 0.2249 | −0.1334 | 0.129* | |
C17 | −0.1374 (4) | 0.2567 (3) | −0.0087 (2) | 0.0940 (10) | |
H17 | −0.1971 | 0.2035 | 0.0109 | 0.113* | |
B1 | 0.2156 (4) | 0.5058 (3) | 0.2312 (2) | 0.0725 (8) | |
H1A | 0.3016 | 0.4684 | 0.2473 | 0.109* | |
H1B | 0.2059 | 0.5667 | 0.2658 | 0.109* | |
H1C | 0.2230 | 0.5261 | 0.1729 | 0.109* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
P1 | 0.0666 (3) | 0.0457 (3) | 0.0507 (3) | 0.0024 (3) | 0.0073 (3) | 0.0026 (3) |
F1 | 0.147 (6) | 0.224 (13) | 0.138 (7) | −0.009 (7) | −0.024 (5) | 0.120 (8) |
F2 | 0.135 (6) | 0.187 (8) | 0.088 (4) | −0.079 (6) | −0.005 (4) | 0.062 (6) |
F3 | 0.262 (14) | 0.127 (6) | 0.043 (2) | −0.039 (7) | 0.009 (5) | −0.003 (3) |
F1' | 0.147 (7) | 0.198 (8) | 0.104 (5) | 0.006 (7) | 0.057 (5) | 0.048 (6) |
F2' | 0.173 (8) | 0.125 (7) | 0.086 (4) | −0.059 (5) | −0.044 (5) | 0.031 (4) |
F3' | 0.311 (16) | 0.070 (3) | 0.083 (3) | −0.010 (6) | 0.028 (7) | 0.019 (2) |
O1 | 0.0793 (11) | 0.0510 (8) | 0.0525 (8) | 0.0086 (9) | −0.0004 (9) | −0.0012 (7) |
N1 | 0.0738 (14) | 0.0513 (11) | 0.0682 (12) | 0.0075 (10) | 0.0073 (11) | 0.0064 (9) |
C1 | 0.0690 (15) | 0.0483 (11) | 0.0488 (10) | −0.0034 (12) | 0.0047 (11) | 0.0009 (9) |
C2 | 0.0896 (19) | 0.0548 (13) | 0.0616 (13) | −0.0182 (14) | 0.0066 (13) | −0.0028 (12) |
C3 | 0.093 (2) | 0.0718 (16) | 0.0515 (11) | −0.0218 (16) | −0.0011 (14) | −0.0073 (11) |
C4 | 0.0742 (17) | 0.0688 (15) | 0.0517 (12) | −0.0075 (13) | 0.0029 (12) | 0.0049 (11) |
C5 | 0.126 (3) | 0.0550 (13) | 0.0633 (14) | −0.0239 (17) | 0.0016 (17) | 0.0055 (11) |
C6 | 0.119 (3) | 0.0536 (13) | 0.0532 (13) | −0.0141 (16) | −0.0066 (15) | −0.0020 (11) |
C7 | 0.113 (3) | 0.090 (2) | 0.0581 (16) | −0.017 (2) | −0.0014 (18) | 0.0086 (15) |
C8 | 0.105 (2) | 0.0764 (17) | 0.105 (2) | 0.0320 (18) | 0.019 (2) | −0.0066 (17) |
C9 | 0.0689 (19) | 0.132 (3) | 0.124 (3) | 0.020 (2) | −0.012 (2) | −0.008 (3) |
C10 | 0.0678 (17) | 0.0783 (17) | 0.0784 (17) | −0.0067 (14) | 0.0098 (14) | 0.0081 (14) |
C11 | 0.0796 (17) | 0.0497 (12) | 0.0664 (15) | −0.0126 (13) | −0.0012 (13) | 0.0070 (11) |
C12 | 0.0704 (16) | 0.0556 (13) | 0.0644 (13) | −0.0005 (13) | −0.0140 (13) | −0.0011 (11) |
C13 | 0.085 (2) | 0.0698 (16) | 0.0592 (13) | −0.0050 (15) | −0.0016 (13) | 0.0044 (12) |
C14 | 0.099 (2) | 0.107 (2) | 0.0650 (15) | 0.017 (2) | 0.0038 (16) | 0.0227 (17) |
C15 | 0.108 (3) | 0.140 (3) | 0.0588 (17) | 0.039 (3) | −0.0159 (19) | −0.003 (2) |
C16 | 0.118 (3) | 0.125 (3) | 0.080 (2) | 0.007 (3) | −0.040 (2) | −0.030 (2) |
C17 | 0.104 (3) | 0.090 (2) | 0.089 (2) | −0.014 (2) | −0.024 (2) | −0.0120 (17) |
B1 | 0.082 (2) | 0.0703 (16) | 0.0656 (18) | −0.0192 (16) | 0.0020 (15) | 0.0076 (14) |
Geometric parameters (Å, º) top
P1—O1 | 1.6001 (16) | C8—H8B | 0.96 |
P1—N1 | 1.657 (2) | C8—H8C | 0.96 |
P1—C1 | 1.810 (2) | C9—C10 | 1.519 (5) |
P1—B1 | 1.886 (3) | C9—H9A | 0.96 |
F1—C7 | 1.327 (7) | C9—H9B | 0.96 |
F2—C7 | 1.274 (6) | C9—H9C | 0.96 |
F3—C7 | 1.308 (7) | C10—C11 | 1.543 (4) |
F1'—C7 | 1.330 (7) | C10—H10 | 0.98 |
F2'—C7 | 1.307 (7) | C11—C12 | 1.501 (4) |
F3'—C7 | 1.302 (6) | C11—H11 | 0.98 |
O1—C11 | 1.457 (3) | C12—C13 | 1.380 (4) |
N1—C8 | 1.467 (3) | C12—C17 | 1.382 (4) |
N1—C10 | 1.468 (3) | C13—C14 | 1.375 (4) |
C1—C2 | 1.378 (3) | C13—H13 | 0.93 |
C1—C6 | 1.394 (4) | C14—C15 | 1.358 (5) |
C2—C3 | 1.378 (3) | C14—H14 | 0.93 |
C2—H2 | 0.93 | C15—C16 | 1.351 (6) |
C3—C4 | 1.372 (4) | C15—H15 | 0.93 |
C3—H3 | 0.93 | C16—C17 | 1.400 (6) |
C4—C5 | 1.368 (4) | C16—H16 | 0.93 |
C4—C7 | 1.498 (4) | C17—H17 | 0.93 |
C5—C6 | 1.378 (4) | B1—H1A | 0.96 |
C5—H5 | 0.93 | B1—H1B | 0.96 |
C6—H6 | 0.93 | B1—H1C | 0.96 |
C8—H8A | 0.96 | | |
| | | |
O1—P1—N1 | 95.76 (10) | N1—C8—H8C | 109.5 |
O1—P1—C1 | 104.29 (10) | H8A—C8—H8C | 109.5 |
N1—P1—C1 | 110.33 (11) | H8B—C8—H8C | 109.5 |
O1—P1—B1 | 116.36 (14) | C10—C9—H9A | 109.5 |
N1—P1—B1 | 115.05 (14) | C10—C9—H9B | 109.5 |
C1—P1—B1 | 113.34 (14) | H9A—C9—H9B | 109.5 |
C11—O1—P1 | 113.84 (16) | C10—C9—H9C | 109.5 |
C8—N1—C10 | 117.5 (3) | H9A—C9—H9C | 109.5 |
C8—N1—P1 | 118.9 (2) | H9B—C9—H9C | 109.5 |
C10—N1—P1 | 109.42 (16) | N1—C10—C9 | 111.9 (3) |
C2—C1—C6 | 118.1 (2) | N1—C10—C11 | 104.6 (2) |
C2—C1—P1 | 120.16 (18) | C9—C10—C11 | 114.3 (3) |
C6—C1—P1 | 121.70 (18) | N1—C10—H10 | 108.6 |
C1—C2—C3 | 121.4 (2) | C9—C10—H10 | 108.6 |
C1—C2—H2 | 119.3 | C11—C10—H10 | 108.6 |
C3—C2—H2 | 119.3 | O1—C11—C12 | 109.1 (2) |
C4—C3—C2 | 119.5 (2) | O1—C11—C10 | 106.2 (2) |
C4—C3—H3 | 120.3 | C12—C11—C10 | 116.9 (2) |
C2—C3—H3 | 120.3 | O1—C11—H11 | 108.1 |
C5—C4—C3 | 120.3 (2) | C12—C11—H11 | 108.1 |
C5—C4—C7 | 119.9 (2) | C10—C11—H11 | 108.1 |
C3—C4—C7 | 119.8 (2) | C13—C12—C17 | 117.9 (3) |
C4—C5—C6 | 120.2 (2) | C13—C12—C11 | 122.1 (2) |
C4—C5—H5 | 119.9 | C17—C12—C11 | 120.0 (3) |
C6—C5—H5 | 119.9 | C14—C13—C12 | 121.2 (3) |
C5—C6—C1 | 120.4 (2) | C14—C13—H13 | 119.4 |
C5—C6—H6 | 119.8 | C12—C13—H13 | 119.4 |
C1—C6—H6 | 119.8 | C15—C14—C13 | 120.6 (4) |
F2—C7—F2' | 129.4 (6) | C15—C14—H14 | 119.7 |
F3'—C7—F2' | 101.1 (7) | C13—C14—H14 | 119.7 |
F2—C7—F3 | 110.7 (7) | C16—C15—C14 | 119.5 (3) |
F3'—C7—F3 | 128.4 (6) | C16—C15—H15 | 120.3 |
F2—C7—F1 | 102.9 (6) | C14—C15—H15 | 120.3 |
F3—C7—F1 | 108.4 (7) | C15—C16—C17 | 120.9 (3) |
F3'—C7—F1' | 107.2 (6) | C15—C16—H16 | 119.5 |
F2'—C7—F1' | 105.6 (7) | C17—C16—H16 | 119.5 |
F1—C7—F1' | 136.4 (5) | C12—C17—C16 | 119.8 (4) |
F2—C7—C4 | 113.9 (4) | C12—C17—H17 | 120.1 |
F3'—C7—C4 | 115.7 (4) | C16—C17—H17 | 120.1 |
F2'—C7—C4 | 115.3 (5) | P1—B1—H1A | 109.5 |
F3—C7—C4 | 111.7 (5) | P1—B1—H1B | 109.5 |
F1—C7—C4 | 108.8 (5) | H1A—B1—H1B | 109.5 |
F1'—C7—C4 | 111.0 (5) | P1—B1—H1C | 109.5 |
N1—C8—H8A | 109.5 | H1A—B1—H1C | 109.5 |
N1—C8—H8B | 109.5 | H1B—B1—H1C | 109.5 |
H8A—C8—H8B | 109.5 | | |
| | | |
N1—P1—O1—C11 | −6.50 (17) | C3—C4—C7—F2' | −27.1 (8) |
C1—P1—O1—C11 | 106.20 (17) | C5—C4—C7—F3 | −165.3 (7) |
B1—P1—O1—C11 | −128.16 (19) | C3—C4—C7—F3 | 14.3 (8) |
O1—P1—N1—C8 | 163.5 (2) | C5—C4—C7—F1 | 75.0 (8) |
C1—P1—N1—C8 | 55.9 (2) | C3—C4—C7—F1 | −105.4 (8) |
B1—P1—N1—C8 | −73.8 (2) | C5—C4—C7—F1' | −86.7 (8) |
O1—P1—N1—C10 | 24.48 (18) | C3—C4—C7—F1' | 92.9 (7) |
C1—P1—N1—C10 | −83.09 (19) | C8—N1—C10—C9 | 62.7 (3) |
B1—P1—N1—C10 | 147.15 (19) | P1—N1—C10—C9 | −157.6 (2) |
O1—P1—C1—C2 | 163.2 (2) | C8—N1—C10—C11 | −173.0 (2) |
N1—P1—C1—C2 | −95.0 (2) | P1—N1—C10—C11 | −33.3 (2) |
B1—P1—C1—C2 | 35.7 (3) | P1—O1—C11—C12 | 114.57 (19) |
O1—P1—C1—C6 | −17.6 (3) | P1—O1—C11—C10 | −12.2 (2) |
N1—P1—C1—C6 | 84.2 (3) | N1—C10—C11—O1 | 27.9 (2) |
B1—P1—C1—C6 | −145.1 (3) | C9—C10—C11—O1 | 150.6 (3) |
C6—C1—C2—C3 | 0.7 (5) | N1—C10—C11—C12 | −94.1 (3) |
P1—C1—C2—C3 | 179.9 (3) | C9—C10—C11—C12 | 28.7 (4) |
C1—C2—C3—C4 | 0.7 (5) | O1—C11—C12—C13 | −44.9 (3) |
C2—C3—C4—C5 | −0.7 (5) | C10—C11—C12—C13 | 75.6 (4) |
C2—C3—C4—C7 | 179.7 (3) | O1—C11—C12—C17 | 135.0 (3) |
C3—C4—C5—C6 | −0.8 (6) | C10—C11—C12—C17 | −104.5 (3) |
C7—C4—C5—C6 | 178.8 (3) | C17—C12—C13—C14 | 0.3 (4) |
C4—C5—C6—C1 | 2.2 (6) | C11—C12—C13—C14 | −179.8 (3) |
C2—C1—C6—C5 | −2.1 (5) | C12—C13—C14—C15 | −1.3 (5) |
P1—C1—C6—C5 | 178.7 (3) | C13—C14—C15—C16 | 2.6 (6) |
C5—C4—C7—F2 | −39.0 (10) | C14—C15—C16—C17 | −2.9 (6) |
C3—C4—C7—F2 | 140.6 (9) | C13—C12—C17—C16 | −0.5 (5) |
C5—C4—C7—F3' | 35.6 (11) | C11—C12—C17—C16 | 179.6 (3) |
C3—C4—C7—F3' | −144.8 (10) | C15—C16—C17—C12 | 1.9 (6) |
C5—C4—C7—F2' | 153.3 (7) | | |