@article {45},
	title = {Enforcing periodic secondary structures in hybrid peptides: a novel hybrid foldamer containing periodic gamma-turn motifs},
	journal = {Journal of Organic Chemistry},
	volume = {72},
	number = {2},
	year = {2007},
	month = {JAN},
	pages = {636-639},
	publisher = {WILEY-V C H VERLAG GMBH},
	type = {Article},
	address = {PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY},
	abstract = {<p>{This note describes the design, synthesis, and conformational studies of a novel hybrid foldamer that adopts a definite compact, three-dimensional structure determined by a combined effect of the special conformational properties of the foldamer constituents. The striking feature of this de novo designed foldamer is its ability to display periodic gamma-turn conformations stabilized by intramolecular hydrogen bonds. Conformational investigations by single-crystal X-ray studies, solution-state NMR, and ab initio MO theory at the HF/6-31G*</p>},
	keywords = {ammonia-TPD, benzylation reaction, Ce-Al-MCM-41, Friedel-Crafts alkylation, pyridine-FrIR},
	issn = {0935-9648},
	doi = {10.1021/jo062032w},
	author = {Baruah, Pranjal K. and Sreedevi, N. K. and Gonnade, Rajesh G. and Ravindranathan, Sapna and Damodaran, Krishnan and Hofmann, Hans-Joerg and Sanjayan, Gangadhar J.}
}
@article {49300,
	title = {Methanesulfonic acid-catalyzed friedel-crafts alkylation: towards sustainable synthesis of arylalkanes from donor-acceptor cyclopropane ketones},
	journal = {Asian Journal of Organic Chemistry},
	volume = {13},
	year = {2024},
	month = {JUL},
	type = {Article},
	abstract = {<p>
	We present herein Br \&amp; oslash;nsted acid-catalyzed Friedel-Crafts alkylation of phenols with Donor-Acceptor cyclopropane ketones. The presence of the 1,4-diphenyl butan-1-one and 1,3-diphenyl propane-1-one motifs in various naturally occurring biologically significant molecules inspired us to pursue the direct synthesis of these structural frameworks. Utilizing methanesulfonic acid (MeSO3H) as a catalyst, we achieved a more environmentally friendly and high-yielding synthesis, owing to its cost-effectiveness, biodegradability, transition-metal and additives free conditions. Furthermore, we have successfully extended our developed methodology to thiophenols, resulting in the production of sulfur-based butan-1-one derivatives in good yields. The presence of 1,4-diphenyl butan-1-one and 1,3-diphenyl propane-1-one motifs in various naturally occurring biologically significant molecules prompted us to develop a Br \&amp; oslash;nsted acid-catalyzed Friedel-Crafts alkylation of phenols with Donor-Acceptor cyclopropane. image</p>
},
	keywords = {donor-acceptor cyclopropane, Friedel-Crafts alkylation, methanesulfonic acid, Phenols, thiophenol},
	issn = {2193-5807},
	doi = {10.1002/ajoc.202400116},
	author = {Goswami, Lakshmi and Paul, Sayantan and Mamale, Ajay G. and Gonnade, Rajesh G. and Bhattacharya, Asish K.}
}
