The hydrogenation of 1,3-pentadiene over an alumina-supported palladiumcatalyst: an FTIR study
文献情報
Elaine Opara, David T. Lundie, Timothy Lear, Iain W. Sutherland, Stewart F. Parker, David Lennon
The hydrogenation of a mixture of cis- and trans-1,3-pentadiene over a 1% Pd/Al2O3 catalyst at 303 K has been studied using infrared spectroscopy to monitor the changes in the composition of the gas phase over the catalyst as a function of time. The reaction is seen to occur as a consecutive process, with the terminal double bond hydrogenated in advance of the internal double bond. Vibrational assignments have been confirmed through ancillary calculations for a number of C5 molecules. The reaction profile is consistent with the catalyst presenting two distinct reaction sites: hydrogenation of the terminal double bond occurs at Site α, whilst Site β is responsible for hydrogenation of the internal double bond. Trans-pent-2-ene is identified as the only reaction intermediate. From comparative studies of the hydrogenation of pentenes over the catalyst, the absence of any cis-pent-2-ene in the reaction mixture is tentatively attributed to cis-1,3-pentadiene isomerising at Site α to form trans-1,3-pentadiene. The effect of toluene-d8 to act as a chemical modifier was also investigated and shown to selectively poison Site β, Site α being unperturbed.
関連文献
Sequential two-stage polymerization for synthesis of isotactic polypropylene/isotactic polybutene-1 alloys: composition, morphology and granule growing mechanism
Baiyu Jiang, Huafeng Shao, Huarong Nie, Aihua He
DOI: 10.1039/C5PY00205B
Molecular design toward efficient polymer solar cells processed by green solvents
Yong Cui, Shaoqing Zhang, Jianhui Hou
DOI: 10.1039/C5PY00431D
A rational approach to activated polyacrylates and polymethacrylates by using a combination of model reactions and SET-LRP of hexafluoroisopropyl acrylate and methacrylate
Shampa R. Samanta, Ruilong Cai, Virgil Percec
DOI: 10.1039/C5PY00082C
Improved photo-induced cobalt-mediated radical polymerization in continuous flow photoreactors
Anthony Kermagoret, Benjamin Wenn, Antoine Debuigne, Christine Jérôme, Christophe Detrembleur
DOI: 10.1039/C5PY00299K
Healable shape memory (thio)urethane thermosets
Le-Thu T. Nguyen, Thuy Thu Truong, Lam Le, Viet Quoc Nguyen, Anh Tuan Luu
DOI: 10.1039/C5PY00126A
Chiral surfactants for dispersing carbon nanotubes
Pengcheng Lin, Yuehua Cong, Baoyan Zhang
DOI: 10.1039/C5PY00040H
Hollow double-layered polymer microspheres with pH and thermo-responsive properties as nitric oxide-releasing reservoirs
Tuanwei Liu, Wei Zhang, Tao Song, Xinlin Yang, Chenxi Li
DOI: 10.1039/C5PY00001G
Direct functionalization of Kevlar® with copolymers containing sulfonyl nitrenes
Jeremy Yatvin, Shalli A. Sherman, Shaun F. Filocamo, Jason Locklin
DOI: 10.1039/C5PY00090D
Organic thin-film transistors with novel high-k polymers as dielectric layers
Yao Li, He Wang, Chunyu Zhang, Yingchao Zhang, Zhanchen Cui, Donghang Yan, Zuosen Shi
DOI: 10.1039/C5PY00221D
こちらもおすすめ
1-{3-[5-(エチルカルボンイル)-2,4-ジメチル-1H-ピロロール-3-基]プロパニル}ピペリジン-4-カルボン酸について、適用される法規ガイドラインは何ですか?
この化合物はCAS番号1142209-81-1であり、GHS分類では corrosive (腐食性物質) と classified (分類物質) として指定され...
2,2-二氟-1,3-ベンゾジオキサン-5-カルボキシlic酸とは何ですか?
2,2-二氟-1,3-ベンゾジオキサン-5-カルボキシlic酸は、CAS番号656-46-2の化合物で、化学式はC8H4F2O4です。この化合物は白色の結晶性粉...
8-氯-4-色原酮の代替品はありますか?
8-氯-4-色原酮(CAS番号: 49701-11-3)の代替品には、他の色原酮類似物や、構造が似ている化合物があります。例えば、8-メチル-4-色原酮や、他の...
エチル6,6-ジメチル-4,5,6,7-テトラヒドロ-1H-インドアゼー-3-カルボキシレートとは何ですか?
エチル6,6-ジメチル-4,5,6,7-テトラヒドロ-1H-インドアゼー-3-カルボキシレートは、CAS番号1233243-56-5を有する化合物です。これは有...
4-叔丁基-6-氯-嘧啶に適用される法規ガイドラインは何ですか?
4-叔丁基-6-氯-嘧啶はCAS番号3435-24-3で、GHS分類では毒性物質とみなし、GHSの危険性分類が適用されます。REACH規則では登録が必要で、Eu...
維库溴铵杂质Bはどのように合成されますか?
維库溴铵杂质Bは、アンドロステンデンから始まり、一連の合成反応、包括的な選択性と高い収率で合成されます。具体的には、ブロミド化、酸化、ジマーゼ反応、アミド化など...
2-(4-氟苄基)-吡咯烷の物理化学的性質は何ですか?
CAS番号350017-04-8の2-(4-氟苄基)-吡咯烷は、結晶性の白色粉末です。分子量は199.17 g/molで、水に溶けにくいです。化学反応では比較的...
3-喹啉甲醛(2-チロール-8-エチル)は安全ですか?
3-喹啉甲醛(2-チロール-8-エチル)は一定の毒性を持つため、取扱には注意が必要です。使用する際は適切な防護具を着用し、密閉容器で保管・搬送し、直接的な接触を...
エチル3-(ヒドロキシメチル)-1H-ピロール-2-カルボキシレートはどのように保存すればよいですか?
エチル3-(ヒドロキシメチル)-1H-ピロール-2-カルボキシレートは、室温(25℃)以下で保存し、直射日光を避け、乾燥した環境で保管することが推奨されます。ま...
掲載誌
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![3-[(4-Nitrobenzyl)oxy]-3-oxopropanoic Acid structure 3-[(4-Nitrobenzyl)oxy]-3-oxopropanoic Acid structure](https://static.chemtradehub.com/structs/773/77359-11-6-0d04.webp)



