Tetrahydrofuran → HCID 178506790, 화합물

2.5 ml. of a 1.2M solution of n-butyllithium in n-hexane were added dropwise to a solution of 0.33 ml. of phenylacetylene in 5 ml. of anhydrous tetrahydrofuran under an atmosphere of nitrogen with stirring at -20°C., and the reaction mixture was stirred at the same temperature for 40 minutes to give a lithio-phenylacetylene solution. The lithio-phenylacetylene solution thus obtained was added dropwise under an atmosphere of nitrogen with stirring at -78°C. to a solution of 1.05 g. of 1α,4α-diacetoxy-2α-(6-methoxycarbonylhex-cis-2-enyl)-3β-(6-methoxycarbonylhex-cis-2-enyl)-3β-(2-formyleth-trans-1-enyl)-cyclopentane (prepared as described in Procedure R) in 10 ml. of anhydrous tetrahydrofuran and the reaction mixture was stirred at the same temperature for 2 hours. A saturated aqueous ammonium chloride solution was added to the reaction mixture, which was extracted with ethyl acetate. The extracts were washed with an aqueous sodium chloride solution, dried over sodium sulphate and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel using a mixture of benzene and ethyl acetate (5:1) as eluent to give 1.097 g. of the title compound having the following physical characteristics:

ORD 기록

ord-d05401ed2b164541a479ad1335194106

출처 데이터셋

uspto-grants-1976_08

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US03978229