반응 #75004
ord-d12b3c586e7f4196ac0a0810b72b08cc
반응 방정식
NaOH
cholesteryl hydrogen succinate
tributylamine
isobutyl chloroformate
→
cholesterol
반응 조건
상세 조건
See reaction.notes.procedure_details.
후처리
- 1온도The solution was cooled
- 2기타cold for 30 minutes
- 3workup.ADDITIONthe mixture was added in one portion to a stirred
- 4온도cooling
- 5기타The material was then dialyzed against water
실험 절차
20.25 Grams (41.8 mmoles) of cholesteryl hydrogen succinate (sold by Aldrich Chemicals) and 19.8 ml (83.4 mmoles) of tributylamine were dissolved in 540 ml of Dioxane. The solution was cooled and treated with 5.3 ml (5.7 g, 41.7 mmoles) of isobutyl chloroformate. The reaction was permitted to proceed in the cold for 30 minutes, and then the mixture was added in one portion to a stirred, cooled solution of 50.0 g (41.7 mmoles) of bovine serum albumin in 1100 ml of water, 750 ml of p-dioxane, and 50 ml of 1 N NaOH. Stirring and cooling was continued for 6 hours. The material was then dialyzed against water and lyophilized to yield a stable white powder useful as a cholesterol standard.