Cyclopentene → HCID 4189396, compound
Reaction equation
[CH:1]1[CH2:5][CH2:4][CH2:3][CH:2]=1.[C:6]1([PH:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1>>[CH:1]1([P:12]([C:13]2[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=2)[C:6]2[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1Participants
3
Procedure
A stirred mixture of 47.6 g (0.7 m) cyclopentene and 136.7 g (0.735 m) diphenyl phosphine in a quartz wessel was irradiated at 15° C. by a broad spectrum ultraviolet light for 17 days. A slow addition reaction took place. Gas chromatographic analysis indicated 60% conversion at the end of the reaction period. The reaction mixture was then fractionally distilled in vacuo to obtain the desired cyclopentyl diphenyl phoshine adduct as a colorless mobile liquid of bp. 138°-140° C. at 0.3 mm (As a by-product, tetraphenyl biphosphine, bp. 210°-212° C. at 0.15 mm, was obtained.)
Workup
- customwas irradiated at 15° C. by a broad spectrum ultraviolet light for 17 days
- additionA slow addition reaction
- customat the end of the reaction period
- distillationThe reaction mixture was then fractionally distilled in vacuo
Sources & evidence
- ORD record
- ord-c29232b6a30a4c55a0428426c8826d96
- Source dataset
- uspto-grants-1986_06
- Patent number
- US04593141
Reaction notes
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