8
A.V. Artem’ev et al.
1
158.12 (C-4 in Ar). 31P NMR (161.98 MHz, CDCl3): δ = 62.70 (s, JP
= 765 Hz). 77Se
=
Se
NMR (76.31 MHz, CDCl3): δ = –273 (d, 1JP
= 757 Hz).
=
Se
4.3.3.2. Se-[1-(Heptylsulfanyl)ethyl] bis(4-methoxyphenethyl)thioselenophosphinate (Se-3e)
3
1H NMR (400.13 MHz, CDCl3): δ = 0.84 (t, JHH = 7.0 Hz, 3 H, MeCH2), 1.23–1.34 (m, 8
3
H, CH2), 1. 58–1.65 (m, 2 H, CH2), 1.89 (d, JHH = 6.9 Hz, 3 H, MeCH), 2.34–2.46 (m, 4 H,
CH2P), 2.71–2.78 and 2.59–2.66 (2 m, each 1 H, SCH2), 2.84–2.93 (m, 4 H, CH2Ar), 3.74 (s,
3
6 H, MeO), 4.48–4.59 (m, 1 H, SCHSe), 6.79 (d, JHH = 8.3 Hz, 4 H, H-3,5 in Ar), 7.06 (d,
3JHH = 8.3 Hz, 4 H, H-2,6 in Ar). 13C NMR (100.62 MHz, CDCl3): δ = 13.81 (Me), 22.34
(CH2Me), 26.31 (d, 3JPC = 2.6 Hz, MeCH), 28.35 (CH2Ar), 28.60 (CH2Am), 28.74 (CH2Bu),
28.98 (CH2Pr), 31.46 (CH2Et), 32.96 (CH2S), 39.75 and 40.11 (2 d, 1JPC = 41.5 and 40.7 Hz,
CH2P), 48.77 (SCHSe), 55.04 (MeO), 113.91 (C-3,5 in Ar), 129.0 (C-2,6 in Ar), 131.99 (d,
3JPC = 16.8 Hz, C-1 in Ar), 158.12 (C-4 in Ar). 31P NMR (161.98 MHz, CDCl3): δ = 63.19 (s,
1JPSe = 353 Hz). 77Se NMR (76.31 MHz, CDCl3): δ = 347 (d, 1JPSe = 351 Hz).
4.3.4. [1-(Pentylselanyl)ethyl] bis(4-chlorophenethyl)thioselenophosphinate
(S-3f/Se-3f = 59:41)
Colorless oil; yield: 0.261 g (87%). IR (neat, v, cm−1): 733 (P–C), 656 (P S), 601 (P–S), 512
=
=
(P Se), 447 (P–Se). Anal. Calcd for C23H31Cl2PSSe2: C, 46.09; H, 5.21; P, 5.17; S, 5.35. Found:
C, 46.17%; H, 5.35%; P, 5.10%; S, 5.38%.
4.3.4.1. S-[1-(Pentylselanyl)ethyl] bis(4-chlorophenethyl)thioselenophosphinate (S-3f) 1H
3
NMR (400.13 MHz, CDCl31): δ = 0.87 (t, JHH = 7.0 Hz, 3 H, MeCH2). 1.30–1.36 (m, 4 H,
3
2CH2), 1.72–1.80 (m, 2 H, CH2), 1.83 (d, JHH = 7.0 Hz, 3 H, MeCH), 2.32–2.50 (m, 4 H,
CH2P), 2.67–2.74 and 2.78–2.83 (2 m, each 1 H, SeCH2), 2.85–3.00 (m, 4 H, CH2Ph), 4.52–
3
4.60 (m, 1 H, SCHSe), 7.10 (d, 4 H, JHH = 7.0 Hz, H-2,6 in Ar), 7.24–7.26 (m, 4 H, H-3,5
in Ar). 13C NMR (100.62 MHz, CDCl3): δ = 14.02 (Me), 22.26 (CH2Me), 26.14 (MeCH),
1
2
27.12 (d, JCSe = 58.9 Hz, CH2Se), 29.27 (d, JPC = 2.2 Hz, CH2Ar), 30.08 (CH2Pr), 32.21
1
3
(CH2Et), 38.22 and 39.24 (2 d, JPC = 40.8 and 40.0 Hz, CH2P), 39.85 (d, JPC = 3.5 Hz,
SCHSe), 128.89 (C-2,6 in Ar), 129.70 (C-3,5 in Ar), 132.48 (C-4 in Ar), 138.48 and 138.61
(2 d, JPC = 16.7 and 16.4 Hz, C-1 in Ar). 31P NMR (161.98 MHz, CDCl3): δ = 63.27 (s,
3
1JP
SeCH2).
= 762 Hz). 77Se NMR (76.31 MHz, CDCl3): δ = –248 (d, JP
= 756 Hz), 330 (s,
1
=
=
Se
Se
4.3.4.2. Se-[1-(Pentylselanyl)ethyl] bis(4-chlorophenethyl)thioselenophosphinate (Se-3f) 1H
3
NMR (400.13 MHz, CDCl3): δ = 0.87 (t, JHH = 7.0 Hz, 3 H, MeCH2). 1.30–1.36 (m, 4 H,
3
2CH2), 1.72–1.80 (m, 2 H, CH2), 2.01 (d, JHH = 7.1 Hz, 3 H, MeCH), 2.32–2.50 (m, 4 H,
CH2P), 2.67–2.74 and 2.78–2.83 (2 m, each 1 H, SeCH2), 2.85–3.00 (m, 4 H, CH2Ph), 4.52–
3
4.60 (m, 1 H, SeCHSe), 7.10 (d, 4 H, JHH = 7.0 Hz, H-2,6 in Ar), 7.24–7.26 (m, 4 H, H-
3,5 in Ar). 13C NMR (100.62 MHz, CDCl3): δ = 14.02 (Me), 22.26 (CH2Me), 26.93 (MeCH),
1
2
27.12 (d, JCSe = 58.9 Hz, CH2Se), 28.83 (d, JPC = 2.2 Hz, CH2Ar), 29.92 (CH2Pr), 32.21
3
1
(CH2Et), 35.84 (d, JPC = 3.5 Hz, SeCHSe), 39.41 and 39.92 (2 d, JPC = 42.6 and 42.3 Hz,
CH2P), 128.89 (C-2,6 in Ar), 129.70 (C-3,5 in Ar), 132.53 (C-4 in Ar), 138.48 and 138.61 (2 d,
3JPC = 17.0 and 16.5 Hz, C1 in Ar). 31P NMR (161.98 MHz, CDCl3): δ = 62.80 (s, 1JPSe = 362
Hz). 77Se NMR (76.31 MHz, CDCl3): δ = 353 (d, 1JPSe = 361 Hz), 330 (s, SeCH2).