WordNet
- compounds composed of 1 carbon and 4 halogen molecules
- an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds (同)C, atomic number 6
- a copy made with carbon paper (同)carbon_copy
- any halide containing four halogen atoms in its molecules
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- 『炭素』(化学記号は『C』) / 〈C〉炭素棒 / 〈C〉《時に〈U〉》=carbon paper
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- 1. 一酸化炭素拡散能 diffusing capacity for carbon monoxide
- 2. 高圧酸素療法 hyperbaric oxygen therapy
- 3. 悪性中皮腫の疫学 epidemiology of malignant mesothelioma
- 4. 血液透析における水の浄化システム water purification systems in hemodialysis
- 5. 煙の吸入 smoke inhalation
English Journal
- Ring-expanding reaction of cyclopropyl amides with triphenylphosphine and carbon tetrahalide.
- Yang YH, Shi M.Author information State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China.AbstractWe succeeded in activating cyclopropyl amides (monoactivated cyclopropane) through the corresponding imidoyl halides prepared in situ in the presence of 2 equiv of PPh3 and 1 equiv of CX4, and the ring-expanding products (N-substituted pyrrolidin-2-ones) were obtained in good yields. The reaction mechanism was investigated on the basis of oxygen-18 tracer experiment.
- The Journal of organic chemistry.J Org Chem.2005 Oct 14;70(21):8645-8.
- We succeeded in activating cyclopropyl amides (monoactivated cyclopropane) through the corresponding imidoyl halides prepared in situ in the presence of 2 equiv of PPh3 and 1 equiv of CX4, and the ring-expanding products (N-substituted pyrrolidin-2-ones) were obtained in good yields. The reaction me
- PMID 16209631
- New method for the synthesis of diversely functionalized imidazoles from N-acylated alpha-aminonitriles.
- Zhong YL, Lee J, Reamer RA, Askin D.Author information Department of Process Research, Merck Research Laboratories, P. O. Box 2000, Rahway, New Jersey 07065, USA. yongli_zhong@merck.comAbstract[reaction: see text] A new general method for the synthesis of medicinally important diversely functionalized imidazoles from N-acylated alpha-aminonitriles has been developed. N-Acylated alpha-aminonitriles were reacted with triphenylphosphine and carbon tetrahalide to afford 2,4-disubstituted 5-halo-1H-imidazoles in good yield. This new methodology was applied for the synthesis of 2-butyl-4-chloro-5-hydroxymethylimidazole. These halo-imidazoles can be directly converted to 2,4,5-trisubstituted imidazoles through palladium-catalyzed coupling reactions.
- Organic letters.Org Lett.2004 Mar 18;6(6):929-31.
- [reaction: see text] A new general method for the synthesis of medicinally important diversely functionalized imidazoles from N-acylated alpha-aminonitriles has been developed. N-Acylated alpha-aminonitriles were reacted with triphenylphosphine and carbon tetrahalide to afford 2,4-disubstituted 5-ha
- PMID 15012067
- A novel titanium tetrahalide-mediated carbon-carbon bond-forming reaction: regioselective synthesis of substituted (E,Z)-1,5-dihalo-1,4-dienes.
- Kabalka GW, Wu Z, Ju Y.Author information Departments of Chemistry and Radiology, The University of Tennessee, Knoxville, TN 37996-1600, USA. kabalka@utk.eduAbstractReactions of aldehydes with 2 equiv of alkyne in the presence of TiX(4) (X = Cl, Br) regioselectively generated 1,5-dihalo-1,4-dienes in moderate to good yields with high (E,Z)-stereoselectivity. [reaction: see text]
- Organic letters.Org Lett.2002 Oct 3;4(20):3415-7.
- Reactions of aldehydes with 2 equiv of alkyne in the presence of TiX(4) (X = Cl, Br) regioselectively generated 1,5-dihalo-1,4-dienes in moderate to good yields with high (E,Z)-stereoselectivity. [reaction: see text]
- PMID 12323032
Japanese Journal
- Initiation of polymerization of vinyl monomers by charge transfer mechanism.
- ,
- Polymer Journal 19(11), 1255-1259, 1987
- … in the presence of carbon tetrahalide was studied in dimethyl sulphoxide at 60°C. …
- NAID 130004428827
- Reaction of triphenylphosphine-carbon tetrahalide reagent with .ALPHA.-keto-.GAMMA.-lactone.
- ,
- Chemistry Letters (1), 103-106, 1981
- … Triphenylphosphine-carbon tetrahalide reagent reacts with 4,4-dimethyloxolan-2,3-dione to afford two dihalomethyleneoxolanes, <B>8</B> …
- NAID 130003413740
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炭素、カーボン
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- C、carbonic