(1S,4R)-4-hydroxy-2-cyclopentenyl acetate

¹H-NMR of (1S,4R)-4-hydroxy-2-cyclopentenyl acetate 

¹H NMR (300 MHz, CDCl₃): d_H: 1.65 (dt, ³J = 14.5, 4.0 Hz, 1 H, 5‑H_A), 2.05 (s, 3 H, CH₃), 2.09 (s, 1 H, OH), 2.80 (quint, J = 7.4 Hz, 1 H, 5‑H_B), 4.68-4.74 (m, 1 H, 4‑H), 5.46-5.52 (m, 1 H, 1‑H), 5.95-6.00 (m, 1 H, 2‑H), 6.08-6.13 (m, 1 H, 3‑H).

¹³C-NMR of (1S,4R)-4-hydroxy-2-cyclopentenyl acetate 

¹³C NMR (75 MHz, CDCl₃): d_C: 21.1 (COCH₃), 40.5 (5‑C), 74.7 (4‑C), 77.0 (1‑C), 132.5 (2‑C), 138.5 (3‑C), 170.8 (OCOCH₃).

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Al Shifa College of Pharmacy
Poonthavanam Post, Kizhattur Village
Perinthalmanna, Malappuram Dist
Kerala-679 325, India

2,4,6-Tris(2-chloropropan-2-yl)-1,3,5-trioxane

2,4,6-Tris(2-chloropropan-2-yl)-1,3,5-trioxane 


mp 106–108 °C (Lit.(1) 106–107 °C);  

¹H NMR (CDCl₃, 300 MHz) δ = 1.54–1.63 (m, 18 H), 4.86–4.90 (m, 3 H) ppm;  

¹³C NMR (CDCl₃, 75 MHz) δ = 26.7, 67.2, 103.0 ppm;

IR ν_max (solid) 1154, 1122, 1107 cm^–1.

 


ref 1
Stevens, C. L.; Gillis, B. T. J. Am. Chem. Soc. 1957, 79, 3448– 3451, DOI: 10.1021/ja01570a036



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Al Shifa College of Pharmacy
Poonthavanam Post, Kizhattur Village
Perinthalmanna, Malappuram Dist
Kerala-679 325, India