Literature DB >> 21202839

2,2'-Bis(4-nitro-phen-oxy)-1,1'-binaphth-yl.

Wen-Xian Liang1, Zhi-Rong Qu.   

Abstract

The title compound, C(32)H(20)N(2)O(6), was synthesized by the reaction of 1,1'-binaphthyl-2,2'-diol and 4-nitro-phenol in the presence of K(2)CO(3). The two naphthalene systems make a dihedral angle of 73.70 (5)°. The crystal packing involves mol-ecules connected by C-H⋯O hydrogen bonds into a chain along the c axis.

Entities:  

Year:  2008        PMID: 21202839      PMCID: PMC2961794          DOI: 10.1107/S1600536808016061

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For the chemistry of 1,1′-binaphthyl-2,2′-diol, see: Hiroshi et al. (2005 ▶); Minatti & Dötz (2005 ▶); Pu (1998 ▶); Periasamy et al. (1998 ▶).

Experimental

Crystal data

C32H20N2O6 M = 528.50 Monoclinic, a = 7.6159 (9) Å b = 24.810 (3) Å c = 13.5022 (15) Å β = 95.790 (3)° V = 2538.3 (5) Å3 Z = 4 Mo Kα radiation μ = 0.10 mm−1 T = 296 (2) K 0.03 × 0.03 × 0.02 mm

Data collection

Bruker SMART APEX CCD area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2000 ▶) T min = 0.988, T max = 0.990 13574 measured reflections 4971 independent reflections 2521 reflections with I > 2σ(I) R int = 0.060

Refinement

R[F 2 > 2σ(F 2)] = 0.054 wR(F 2) = 0.114 S = 0.85 4971 reflections 361 parameters H-atom parameters constrained Δρmax = 0.13 e Å−3 Δρmin = −0.20 e Å−3 Data collection: SMART (Bruker, 2000 ▶); cell refinement: SAINT (Bruker, 2000 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: SHELXTL (Sheldrick, 2008 ▶); software used to prepare material for publication: SHELXTL. Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808016061/kp2173sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536808016061/kp2173Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C32H20N2O6F(000) = 1096
Mr = 528.50Dx = 1.383 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 1979 reflections
a = 7.6159 (9) Åθ = 3.1–27.3°
b = 24.810 (3) ŵ = 0.10 mm1
c = 13.5022 (15) ÅT = 296 K
β = 95.790 (3)°Block, colourless
V = 2538.3 (5) Å30.03 × 0.03 × 0.02 mm
Z = 4
Bruker SMART APEX CCD area-detector diffractometer4971 independent reflections
Radiation source: fine-focus sealed tube2521 reflections with I > 2σ(I)
graphiteRint = 0.060
φ and ω scansθmax = 26.0°, θmin = 1.7°
Absorption correction: multi-scan (SADABS; Bruker, 2000)h = −9→9
Tmin = 0.988, Tmax = 0.990k = −23→30
13574 measured reflectionsl = −16→14
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.054Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.114H-atom parameters constrained
S = 0.86w = 1/[σ2(Fo2) + (0.036P)2] where P = (Fo2 + 2Fc2)/3
4971 reflections(Δ/σ)max < 0.001
361 parametersΔρmax = 0.13 e Å3
0 restraintsΔρmin = −0.21 e Å3
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.
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.
xyzUiso*/Ueq
O41.3508 (2)0.39839 (7)0.26199 (13)0.0562 (5)
O10.9879 (2)0.43838 (7)0.17323 (12)0.0553 (5)
N10.4540 (3)0.59046 (10)0.10343 (16)0.0583 (7)
C251.0230 (4)0.40498 (9)0.44518 (18)0.0446 (7)
C81.0031 (3)0.36017 (9)0.27505 (17)0.0397 (6)
C241.1008 (3)0.39169 (9)0.35680 (17)0.0399 (6)
C110.8489 (4)0.47360 (10)0.15533 (17)0.0448 (7)
C171.2690 (4)0.40833 (9)0.34837 (19)0.0448 (7)
C230.8491 (4)0.39068 (10)0.46109 (19)0.0529 (7)
H23A0.77970.37200.41180.063*
C120.6795 (4)0.46179 (10)0.17407 (18)0.0535 (7)
H12A0.65270.42790.19800.064*
C71.0293 (4)0.27455 (11)0.37128 (19)0.0553 (8)
H7A1.07820.29310.42730.066*
O30.4934 (3)0.63407 (8)0.07056 (14)0.0734 (6)
C90.9767 (3)0.30318 (10)0.28363 (18)0.0445 (7)
C140.5925 (4)0.54981 (11)0.12233 (18)0.0479 (7)
C30.8464 (4)0.30174 (12)0.1116 (2)0.0641 (8)
H3A0.79370.28280.05700.077*
C10.9496 (3)0.38393 (10)0.18595 (19)0.0467 (7)
C271.3749 (3)0.34527 (11)0.23632 (19)0.0462 (7)
N21.4260 (4)0.18672 (11)0.1414 (2)0.0768 (8)
C150.7607 (4)0.56203 (11)0.10407 (18)0.0558 (8)
H15A0.78720.59610.08080.067*
C20.8700 (4)0.35544 (12)0.10426 (19)0.0608 (8)
H2A0.83360.37330.04520.073*
C220.7803 (4)0.40373 (11)0.5478 (2)0.0671 (9)
H22A0.66550.39370.55710.081*
C321.4198 (3)0.30571 (11)0.30582 (19)0.0531 (7)
H32A1.43690.31430.37320.064*
O20.3041 (3)0.57870 (8)0.12092 (16)0.0825 (7)
C100.9002 (4)0.27407 (11)0.2002 (2)0.0526 (7)
C160.8915 (4)0.52370 (11)0.12019 (17)0.0540 (7)
H16A1.00660.53150.10760.065*
C261.1244 (4)0.43468 (10)0.52074 (19)0.0528 (7)
C181.3671 (4)0.43793 (10)0.4217 (2)0.0601 (8)
H18A1.48070.44910.41220.072*
C130.5496 (4)0.50002 (11)0.15740 (19)0.0578 (8)
H13A0.43430.49230.16960.069*
C311.4392 (4)0.25318 (11)0.27459 (19)0.0539 (7)
H31A1.46980.22590.32030.065*
C191.2974 (4)0.45038 (11)0.5068 (2)0.0663 (9)
H19A1.36420.46950.55640.080*
C301.4125 (4)0.24221 (11)0.1749 (2)0.0527 (7)
C40.8843 (4)0.21737 (12)0.2078 (2)0.0721 (9)
H4A0.83630.19780.15290.086*
O51.4527 (3)0.15122 (9)0.20191 (16)0.0954 (8)
C201.0481 (5)0.44692 (12)0.6088 (2)0.0767 (10)
H20A1.11410.46580.65910.092*
C291.3761 (4)0.28167 (12)0.10560 (19)0.0634 (8)
H29A1.36430.27330.03810.076*
C281.3571 (3)0.33380 (11)0.13642 (19)0.0564 (8)
H28A1.33230.36110.09000.068*
C50.9374 (5)0.19142 (12)0.2932 (3)0.0820 (10)
H5A0.92560.15420.29690.098*
O61.4102 (4)0.17823 (9)0.05245 (17)0.1275 (11)
C61.0096 (4)0.22003 (12)0.3755 (2)0.0680 (9)
H6A1.04510.20180.43440.082*
C210.8817 (5)0.43195 (13)0.6221 (2)0.0774 (11)
H21A0.83470.44050.68110.093*
U11U22U33U12U13U23
O40.0586 (14)0.0454 (12)0.0676 (12)−0.0072 (9)0.0207 (10)0.0062 (10)
O10.0477 (13)0.0515 (12)0.0657 (12)−0.0035 (10)0.0005 (10)0.0137 (10)
N10.0579 (19)0.0617 (18)0.0550 (15)0.0040 (15)0.0045 (14)0.0064 (14)
C250.0507 (19)0.0348 (15)0.0473 (16)0.0051 (13)0.0006 (14)0.0039 (13)
C80.0376 (17)0.0417 (16)0.0406 (15)−0.0034 (12)0.0087 (12)−0.0034 (13)
C240.0422 (18)0.0337 (15)0.0429 (15)−0.0030 (12)−0.0007 (13)0.0037 (12)
C110.0453 (19)0.0494 (17)0.0387 (15)−0.0052 (14)−0.0014 (13)0.0036 (13)
C170.0462 (19)0.0353 (15)0.0519 (17)−0.0057 (13)−0.0001 (15)0.0033 (13)
C230.055 (2)0.0523 (18)0.0518 (17)0.0060 (14)0.0094 (15)0.0038 (14)
C120.050 (2)0.0451 (18)0.0666 (19)−0.0043 (15)0.0126 (16)0.0111 (15)
C70.060 (2)0.0493 (18)0.0572 (18)−0.0070 (15)0.0095 (15)0.0004 (15)
O30.0901 (18)0.0586 (14)0.0727 (13)0.0070 (12)0.0136 (12)0.0199 (12)
C90.0418 (18)0.0441 (17)0.0490 (16)−0.0071 (13)0.0113 (13)−0.0053 (14)
C140.049 (2)0.0480 (18)0.0461 (16)−0.0017 (15)0.0038 (14)0.0031 (14)
C30.058 (2)0.077 (2)0.0542 (19)−0.0067 (18)−0.0057 (16)−0.0206 (18)
C10.0399 (18)0.0475 (18)0.0529 (17)−0.0023 (14)0.0056 (14)−0.0026 (15)
C270.0383 (17)0.0463 (18)0.0551 (17)−0.0013 (13)0.0094 (14)0.0056 (15)
N20.093 (2)0.067 (2)0.0689 (19)0.0145 (17)0.0008 (17)−0.0064 (17)
C150.057 (2)0.0519 (18)0.0573 (18)−0.0111 (16)0.0026 (16)0.0150 (15)
C20.055 (2)0.075 (2)0.0502 (17)0.0011 (17)−0.0048 (15)−0.0006 (17)
C220.071 (2)0.069 (2)0.065 (2)0.0214 (18)0.0218 (19)0.0203 (18)
C320.056 (2)0.0562 (19)0.0463 (16)−0.0008 (15)0.0037 (14)0.0003 (15)
O20.0545 (16)0.0778 (16)0.1164 (18)0.0085 (12)0.0148 (14)0.0156 (13)
C100.0457 (19)0.0504 (18)0.0618 (18)−0.0079 (14)0.0058 (15)−0.0147 (16)
C160.0465 (19)0.0599 (19)0.0551 (17)−0.0085 (15)0.0030 (14)0.0144 (15)
C260.072 (2)0.0379 (16)0.0467 (17)0.0052 (15)−0.0054 (16)−0.0045 (14)
C180.051 (2)0.0488 (19)0.079 (2)−0.0140 (15)−0.0049 (17)0.0064 (17)
C130.049 (2)0.0567 (19)0.0702 (19)−0.0057 (16)0.0164 (16)0.0074 (16)
C310.059 (2)0.0557 (19)0.0471 (17)0.0056 (15)0.0070 (14)0.0049 (15)
C190.082 (3)0.0444 (19)0.068 (2)−0.0130 (17)−0.0175 (19)−0.0091 (16)
C300.053 (2)0.0541 (19)0.0516 (17)0.0122 (15)0.0069 (15)−0.0025 (16)
C40.073 (3)0.053 (2)0.089 (2)−0.0150 (17)0.007 (2)−0.0250 (19)
O50.144 (2)0.0593 (15)0.0822 (16)0.0152 (15)0.0077 (15)−0.0012 (13)
C200.117 (3)0.061 (2)0.050 (2)0.012 (2)0.002 (2)−0.0108 (16)
C290.072 (2)0.075 (2)0.0436 (16)0.0157 (18)0.0068 (15)0.0045 (17)
C280.059 (2)0.061 (2)0.0503 (18)0.0101 (16)0.0105 (15)0.0154 (16)
C50.094 (3)0.042 (2)0.111 (3)−0.0168 (19)0.017 (2)−0.007 (2)
O60.220 (3)0.098 (2)0.0606 (14)0.0392 (19)−0.0073 (17)−0.0251 (14)
C60.086 (3)0.048 (2)0.072 (2)−0.0035 (17)0.0167 (19)0.0086 (18)
C210.114 (3)0.072 (2)0.050 (2)0.031 (2)0.022 (2)0.0027 (18)
O4—C271.380 (3)N2—O51.205 (3)
O4—C171.398 (3)N2—O61.213 (3)
O1—C111.375 (3)N2—C301.456 (3)
O1—C11.396 (3)C15—C161.378 (3)
N1—O31.218 (2)C15—H15A0.9300
N1—O21.224 (3)C2—H2A0.9300
N1—C141.463 (3)C22—C211.391 (4)
C25—C231.408 (3)C22—H22A0.9300
C25—C261.422 (3)C32—C311.382 (3)
C25—C241.423 (3)C32—H32A0.9300
C8—C11.365 (3)C10—C41.416 (3)
C8—C91.434 (3)C16—H16A0.9300
C8—C241.489 (3)C26—C191.405 (4)
C24—C171.361 (3)C26—C201.408 (3)
C11—C121.371 (3)C18—C191.349 (3)
C11—C161.381 (3)C18—H18A0.9300
C17—C181.389 (3)C13—H13A0.9300
C23—C221.369 (3)C31—C301.368 (3)
C23—H23A0.9300C31—H31A0.9300
C12—C131.373 (3)C19—H19A0.9300
C12—H12A0.9300C30—C291.364 (3)
C7—C61.363 (3)C4—C51.347 (4)
C7—C91.403 (3)C4—H4A0.9300
C7—H7A0.9300C20—C211.350 (4)
C9—C101.413 (3)C20—H20A0.9300
C14—C151.363 (3)C29—C281.371 (3)
C14—C131.374 (3)C29—H29A0.9300
C3—C21.349 (3)C28—H28A0.9300
C3—C101.405 (3)C5—C61.385 (4)
C3—H3A0.9300C5—H5A0.9300
C1—C21.396 (3)C6—H6A0.9300
C27—C281.372 (3)C21—H21A0.9300
C27—C321.377 (3)
C27—O4—C17117.38 (19)C1—C2—H2A120.2
C11—O1—C1118.0 (2)C23—C22—C21120.2 (3)
O3—N1—O2123.4 (3)C23—C22—H22A119.9
O3—N1—C14118.4 (3)C21—C22—H22A119.9
O2—N1—C14118.2 (2)C27—C32—C31119.4 (2)
C23—C25—C26118.2 (3)C27—C32—H32A120.3
C23—C25—C24123.2 (2)C31—C32—H32A120.3
C26—C25—C24118.7 (3)C3—C10—C9119.4 (2)
C1—C8—C9117.7 (2)C3—C10—C4121.8 (3)
C1—C8—C24120.6 (2)C9—C10—C4118.8 (3)
C9—C8—C24121.4 (2)C15—C16—C11119.0 (3)
C17—C24—C25118.3 (2)C15—C16—H16A120.5
C17—C24—C8120.1 (2)C11—C16—H16A120.5
C25—C24—C8121.6 (2)C19—C26—C20121.7 (3)
C12—C11—O1123.6 (2)C19—C26—C25119.7 (3)
C12—C11—C16120.9 (3)C20—C26—C25118.5 (3)
O1—C11—C16115.4 (2)C19—C18—C17119.9 (3)
C24—C17—C18123.0 (3)C19—C18—H18A120.1
C24—C17—O4121.2 (2)C17—C18—H18A120.1
C18—C17—O4115.8 (3)C12—C13—C14119.0 (3)
C22—C23—C25121.2 (3)C12—C13—H13A120.5
C22—C23—H23A119.4C14—C13—H13A120.5
C25—C23—H23A119.4C30—C31—C32118.5 (3)
C11—C12—C13119.9 (2)C30—C31—H31A120.7
C11—C12—H12A120.1C32—C31—H31A120.7
C13—C12—H12A120.1C18—C19—C26120.4 (3)
C6—C7—C9121.0 (3)C18—C19—H19A119.8
C6—C7—H7A119.5C26—C19—H19A119.8
C9—C7—H7A119.5C29—C30—C31122.2 (3)
C7—C9—C10118.2 (2)C29—C30—N2118.8 (3)
C7—C9—C8122.4 (2)C31—C30—N2119.1 (3)
C10—C9—C8119.3 (2)C5—C4—C10121.1 (3)
C15—C14—C13121.5 (3)C5—C4—H4A119.5
C15—C14—N1119.3 (3)C10—C4—H4A119.5
C13—C14—N1119.2 (3)C21—C20—C26121.7 (3)
C2—C3—C10121.0 (3)C21—C20—H20A119.1
C2—C3—H3A119.5C26—C20—H20A119.1
C10—C3—H3A119.5C30—C29—C28119.3 (3)
C8—C1—C2123.0 (2)C30—C29—H29A120.3
C8—C1—O1118.6 (2)C28—C29—H29A120.3
C2—C1—O1118.2 (2)C29—C28—C27119.4 (3)
C28—C27—C32121.0 (3)C29—C28—H28A120.3
C28—C27—O4116.3 (2)C27—C28—H28A120.3
C32—C27—O4122.7 (2)C4—C5—C6120.2 (3)
O5—N2—O6122.5 (3)C4—C5—H5A119.9
O5—N2—C30119.5 (3)C6—C5—H5A119.9
O6—N2—C30118.0 (3)C7—C6—C5120.8 (3)
C14—C15—C16119.7 (3)C7—C6—H6A119.6
C14—C15—H15A120.2C5—C6—H6A119.6
C16—C15—H15A120.2C20—C21—C22120.2 (3)
C3—C2—C1119.5 (3)C20—C21—H21A119.9
C3—C2—H2A120.2C22—C21—H21A119.9
C23—C25—C24—C17178.9 (2)C28—C27—C32—C31−3.0 (4)
C26—C25—C24—C17−0.3 (3)O4—C27—C32—C31179.0 (2)
C23—C25—C24—C8−1.5 (4)C2—C3—C10—C91.4 (4)
C26—C25—C24—C8179.3 (2)C2—C3—C10—C4−176.9 (3)
C1—C8—C24—C17−69.6 (3)C7—C9—C10—C3180.0 (2)
C9—C8—C24—C17104.5 (3)C8—C9—C10—C3−2.0 (4)
C1—C8—C24—C25110.8 (3)C7—C9—C10—C4−1.7 (4)
C9—C8—C24—C25−75.1 (3)C8—C9—C10—C4176.3 (2)
C1—O1—C11—C1217.3 (3)C14—C15—C16—C11−0.4 (4)
C1—O1—C11—C16−165.2 (2)C12—C11—C16—C150.0 (4)
C25—C24—C17—C18−0.5 (4)O1—C11—C16—C15−177.5 (2)
C8—C24—C17—C18179.9 (2)C23—C25—C26—C19−179.0 (2)
C25—C24—C17—O4−177.6 (2)C24—C25—C26—C190.2 (4)
C8—C24—C17—O42.8 (4)C23—C25—C26—C201.9 (4)
C27—O4—C17—C24−62.0 (3)C24—C25—C26—C20−178.9 (2)
C27—O4—C17—C18120.7 (2)C24—C17—C18—C191.4 (4)
C26—C25—C23—C22−1.6 (4)O4—C17—C18—C19178.7 (2)
C24—C25—C23—C22179.2 (2)C11—C12—C13—C14−0.2 (4)
O1—C11—C12—C13177.6 (2)C15—C14—C13—C12−0.2 (4)
C16—C11—C12—C130.3 (4)N1—C14—C13—C12179.3 (2)
C6—C7—C9—C101.0 (4)C27—C32—C31—C30−0.2 (4)
C6—C7—C9—C8−176.9 (2)C17—C18—C19—C26−1.5 (4)
C1—C8—C9—C7179.0 (2)C20—C26—C19—C18179.8 (3)
C24—C8—C9—C74.7 (4)C25—C26—C19—C180.7 (4)
C1—C8—C9—C101.1 (4)C32—C31—C30—C293.3 (4)
C24—C8—C9—C10−173.2 (2)C32—C31—C30—N2−177.7 (2)
O3—N1—C14—C150.9 (4)O5—N2—C30—C29−177.7 (3)
O2—N1—C14—C15−179.6 (2)O6—N2—C30—C292.5 (4)
O3—N1—C14—C13−178.6 (2)O5—N2—C30—C313.3 (4)
O2—N1—C14—C130.9 (4)O6—N2—C30—C31−176.5 (3)
C9—C8—C1—C20.5 (4)C3—C10—C4—C5179.6 (3)
C24—C8—C1—C2174.8 (2)C9—C10—C4—C51.3 (4)
C9—C8—C1—O1−174.5 (2)C19—C26—C20—C21179.8 (3)
C24—C8—C1—O1−0.2 (4)C25—C26—C20—C21−1.1 (4)
C11—O1—C1—C8−117.7 (3)C31—C30—C29—C28−3.2 (4)
C11—O1—C1—C267.0 (3)N2—C30—C29—C28177.8 (3)
C17—O4—C27—C28144.1 (2)C30—C29—C28—C270.0 (4)
C17—O4—C27—C32−37.9 (3)C32—C27—C28—C293.1 (4)
C13—C14—C15—C160.5 (4)O4—C27—C28—C29−178.8 (2)
N1—C14—C15—C16−179.0 (2)C10—C4—C5—C6−0.2 (5)
C10—C3—C2—C10.2 (4)C9—C7—C6—C50.1 (4)
C8—C1—C2—C3−1.2 (4)C4—C5—C6—C7−0.5 (5)
O1—C1—C2—C3173.9 (2)C26—C20—C21—C22−0.1 (5)
C25—C23—C22—C210.5 (4)C23—C22—C21—C200.4 (5)
D—H···AD—HH···AD···AD—H···A
C16—H16A···O2i0.932.543.425 (3)159.
C32—H32A···O6ii0.932.453.360 (3)165.
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
C16—H16A⋯O2i0.932.543.425 (3)159
C32—H32A⋯O6ii0.932.453.360 (3)165

Symmetry codes: (i) ; (ii) .

  4 in total

1.  1,1'-Binaphthyl Dimers, Oligomers, and Polymers: Molecular Recognition, Asymmetric Catalysis, and New Materials.

Authors:  Lin Pu
Journal:  Chem Rev       Date:  1998-11-05       Impact factor: 60.622

2.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  Kinetic resolution of axially chiral 2,2'-dihydroxy-1,1'-biaryls by palladium-catalyzed alcoholysis.

Authors:  Hiroshi Aoyama; Makoto Tokunaga; Junya Kiyosu; Tetsuo Iwasawa; Yasushi Obora; Yasushi Tsuji
Journal:  J Am Chem Soc       Date:  2005-08-03       Impact factor: 15.419

4.  New Methods of Resolution and Enrichment of Enantiomeric Excesses of 1,1'-Bi-2-naphthol.

Authors:  Mariappan Periasamy; Lakshmanan Venkatraman; K. R. Justin Thomas
Journal:  J Org Chem       Date:  1997-06-27       Impact factor: 4.354

  4 in total

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