Ring-sidearm cooperativity in cation inclusion complexes of 12-membered ring lariat ethers: effect of sidearm chain length and a clarification of long-sidearm binding strengths

1988 ◽  
Vol 53 (24) ◽  
pp. 5652-5657 ◽  
Author(s):  
Kristin A. Arnold ◽  
Jesus Mallen ◽  
John E. Trafton ◽  
Banita D. White ◽  
Frank R. Fronczek ◽  
...  
Keyword(s):  
Chain Length ◽  
Inclusion Complexes ◽  
Membered Ring ◽  
Lariat Ethers

Formation of debranched wheat starch-fatty acid inclusion complexes using saturated fatty acids with different chain length

LWT ◽  
2021 ◽  
pp. 110867
Author(s):  
Min Hyeock Lee ◽  
Ha Ram Kim ◽  
Woo Su Lim ◽  
Min-Cheol Kang ◽  
Hee-Don Choi ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Chain Length ◽  
Inclusion Complexes ◽  
Saturated Fatty Acids ◽  
Wheat Starch

The first evidence for aggregation behavior in a lipophilic [2.2.2]-cryptand and in 18-membered ring steroidal lariat ethers

1988 ◽  
Vol 29 (33) ◽  
pp. 4065-4068 ◽  
Author(s):  
Lourdes E. Echegoyen ◽  
Lourdes Portugal ◽  
Steven R. Miller ◽  
Jeanette C. Hernandez ◽  
Luis Echegoyen ◽  
...  
Keyword(s):  
Membered Ring ◽  
Aggregation Behavior ◽  
Lariat Ethers

Novel synthetic access to 15- and 18-membered ring diaza-bibracchial lariat ethers (BiBLEs) and a study of sidearm-macroring cooperativity in cation binding

1986 ◽  
Vol 27 (3) ◽  
pp. 327-330 ◽  
Author(s):  
Vincent J. Gatto ◽  
Kristin A. Arnold ◽  
Anthony M. Viscariello ◽  
Steven R. Miller ◽  
George W. Gokel
Keyword(s):  
Membered Ring ◽  
Cation Binding ◽  
Lariat Ethers

Syntheses and cation binding properties of 12-membered ring nitrogen-pivot lariat ethers

1985 ◽  
Vol 26 (2) ◽  
pp. 151-154 ◽  
Author(s):  
Banita D. White ◽  
Dennis M. Dishong ◽  
Carlo Minganti ◽  
Kristin A. Arnold ◽  
D.M. Goli ◽  
...  
Keyword(s):  
Membered Ring ◽  
Cation Binding ◽  
Lariat Ethers ◽  
Binding Properties ◽  
Ring Nitrogen

Electrochemical switching in anthraquinone-substituted carbon-pivot lariat ethers and podands: chain length effects in geometric and electronic cooperativity

1986 ◽  
Vol 108 (24) ◽  
pp. 7553-7560 ◽  
Author(s):  
Deborah A. Gustowski ◽  
Milagros. Delgado ◽  
Vincent J. Gatto ◽  
Luis. Echegoyen ◽  
George W. Gokel
Keyword(s):  
Chain Length ◽  
Lariat Ethers ◽  
Length Effects

Synthetic Applications of Intramolecular Insertion in Arylcarbenes. I. o-Alkylphenylcarbenes and 1-(o-Alkylphenyl)ethylidenes

1979 ◽  
Vol 32 (1) ◽  
pp. 89 ◽  
Author(s):  
WD Crow ◽  
H McNab
Keyword(s):  
Hydrogen Atom ◽  
Gas Phase ◽  
Chain Length ◽  
Membered Ring ◽  
Ring Formation ◽  
Ortho Position ◽  
Methyl Group ◽  
Alkyl Chains ◽  
Out Of Plane

A series of phenylcarbenes and 1-phenylethylidenes, substituted in the ortho-position by alkyl chains of 1-4 carbon atoms, has been generated in the gas phase and pyrolysed at 250-750°/0.05-0.10 mm. Apart from o-tolylcarbene, the phenylcarbenes show efficient insertion to form five- and six-membered rings, the former predominating. In the phenylethylidenes, Bamford-Stevens insertion into the adjacent methyl group competes with cyclization to an extent which decreases with chain length. At the same time, five-membered ring formation is greatly increased over six-membered ring formation, due to facilitation of out-of-plane twisting of the carbene atom. The mechanistic implications of the results are discussed in terms of an angular approach of the carbene p-orbital to the hydrogen atom under attack.

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