Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Stephen J. Geier"'
Autor:
Jeremy L. Bourque, Stephen J. Geier, Christopher M. Vogels, Andreas Decken, Stephen A. Westcott
Publikováno v:
Crystals, Vol 5, Iss 1, Pp 91-99 (2015)
Reductive amination of salicylaldehyde or 3,5-di-tert-butylsalicylaldehyde and 1-adamantylamine using NaBH4 gave the corresponding aminoalcohols in high yields. Subsequent addition of one equivalent of H3B·SMe2 to the aminoalcohols, with loss of two
Externí odkaz:
https://doaj.org/article/d172f2e6bc7445099f8f5abba235cbf6
Publikováno v:
Chemical Society Reviews. 51:8877-8922
The use of transition metals to catalyse the addition of hydridoboranes to unsaturated organic molecules was initially realised several decades ago. Although this area of chemistry received considerable attention at the time, interest in this reactio
Autor:
Samuel R. Baird, Christopher M. Vogels, Stephen J. Geier, Lara K. Watanabe, Justin F. Binder, Charles L. B. Macdonald, Stephen A. Westcott
Publikováno v:
Canadian Journal of Chemistry.
This study reports on the exploration of the phosphinoboration reaction with several thiosemicarbazones (R5R4NC(S)NR3N=CR1R2). Reactions between either Ph2PBpin (pin = 1,2-O2C2Me4) or Ph2PBcat (cat = 1,2-O2C6H4) with thiosemicarbazones containing a t
Autor:
Justin F. Binder, Stephen A. Westcott, Lara K. Watanabe, Christopher M. Vogels, Stephen J. Geier, Charles L. B. Macdonald
Publikováno v:
New Journal of Chemistry. 45:14908-14912
The uncatalyzed addition of catecholborane to α-diimines has been examined. Reactions proceed smoothly at room temperature in the absence of a catalyst or additive, providing bis-hydroboration products with 3-coordinate boron centres or mono-hydrobo
Autor:
Stephen A. Westcott, Justin F. Binder, Charles L. B. Macdonald, Douglas W. Stephan, Alina Trofimova, Stephen J. Geier, James H. W. LaFortune, Christopher M. Vogels, Maia C Murphy
Publikováno v:
Dalton Transactions. 49:5092-5099
This investigation examines the reactivity of phosphinoboronate esters Ph2PBpin (pin = 1,2-O2C2Me4) and Ph2PBcat (cat = 1,2-O2C6H4), as well as other phosphinoboron species, with various aryl and aliphatic acyl chlorides. These reactions proceed smoo
Autor:
Justin F. Binder, Christopher M. Vogels, Meagan B. Kindervater, Charles L. B. Macdonald, Samuel R. Baird, Stephen A. Westcott, Stephen J. Geier
Publikováno v:
Journal of Organometallic Chemistry. 880:378-385
We have investigated the addition of a simple phosphinoboronate ester, Ph2PBpin (pin = 1,2-O2C2Me4), to 2-diphenylphosphinobenzaldehyde (2-Ph2PC6H4C(O)H) and related aldimine derivatives (2-Ph2PC6H4C(NR)H) as a simple and effective strategy for gener
Autor:
Jason D. Masuda, Stephen J. Geier, Stephen A. Westcott, Patrick T. Gormley, B. Ninh Khuong, Christopher M. Vogels, Tyson J. MacCormack
Publikováno v:
Journal of the Brazilian Chemical Society v.31 n.7 2020
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 31, Issue: 7, Pages: 1541-1550, Published: 03 JUL 2020
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 31, Issue: 7, Pages: 1541-1550, Published: 03 JUL 2020
In this study we have expanded upon a family of substituted pentacyclic oxadiazadiborinane derivatives from the condensation of carbohydrazide with ortho-formylphenyl boronic acid derivatives containing a variety of chemical and physical properties.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c335ecbec0154c57b01efab245ba1cf2
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532020000701541
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532020000701541
Autor:
Christopher M. Vogels, Simon Doherty, Stephen A. Westcott, Erika N. Daley, Stephen J. Geier, Andreas Decken, Niall R. Mellonie
Publikováno v:
Chemistry - A European Journal. 23:14485-14499
The addition of phosphinoboronate ester Ph2PBpin (pin = 1,2-O2C2Me4) (1) to a number of different N-heterocycles has been investigated. Reaction of 1 with pyridine resulted in highly selective formation of the corresponding 1,4-addition product, with
Autor:
Stephen A. Westcott, Diya Zhu, James H. W. LaFortune, Charles L. B. Macdonald, Douglas W. Stephan, Stephanie C. Kosnik, Stephen J. Geier
Publikováno v:
Dalton Transactions. 46:10876-10885
The transition metal-free addition of phosphinoboronate ester Ph2PBpin (pin = 1,2-O2C2Me4) to heterocumulenes including carbodiimides, isocyanates, isothiocyanates and carbon dioxide has been investigated. The corresponding 1,2-addition products were
Autor:
Katherine N. Robertson, Arthur D. Hendsbee, Lauren K. Keyes, Alex J. Veinot, Nick A. Giffin, Angela D. K. Todd, Jason D. Masuda, Stephen J. Geier
Publikováno v:
RSC Advances. 7:37315-37323
The reaction of L-AlH2 (L = HC(MeCNDipp)2, Dipp = 2,6-diisopropylphenyl) with sterically bulky phenols (2,4,6-trimethylphenol, MesOH; 2,6-diisopropylphenol, DippOH) and an N-hydroxylamine (1-hydroxy-2,2,6,6-tetramethyl-piperidine, TEMPO-H) forms an A