01365nas a2200169   4500008004100000022001400041245006600055210005600121260008100177300001600258490000700274520074200281100002301023700002401046700002801070856009701098       2008                        eng d  a1600-536800aDi-tert-butyl N,N `-(octahydropentalene-2,5-diyl) dicarbamate0 aDitertbutyl NN octahydropentalene25diyl dicarbamate  a9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLANDbBLACKWELL PUBLISHINGcJUN  aO1149-U28040 v643 a<p>In the molecule of the title compound, C18H32N2O4, the central bicyclo[3.3.0] octane (octahydropentalene) has a rigid ring junction. Both rings of the bicyclo[3.3.0] octane unit adopt an envelope conformation, and the flexible tert-butylcarbamoyl side chains each have an extended conformation. Such a constrained bicyclo[3.3.0] octane aliphatic template is of interest with respect to the design of novel self-assembling motifs. Molecules related by c-glide symmetry are linked via intermolecular N-H center dot center dot center dot O hydrogen bonds, forming a two-dimensional layer structure. Neighboring layers are weakly associated along the a axis due to the close approach of the tert-butylcarbamoyl groups (2.55 angstrom).</p>1 aKendhale, Amol, M.1 aGonnade, Rajesh, G.1 aSanjayan, Gangadhar, J.  uhttps://library.ncl.res.in/content/di-tert-butyl-nn-octahydropentalene-25-diyl-dicarbamate-001017nas a2200181   4500008004100000022001400041245008800055210006900143260011000212300001400322520025200336100002300588700002400611700003500635700002400670700002800694856011300722       2008                        eng d  a1359-734500aFoldamers with unusual structural architecture from spirobi(indane) building blocks0 aFoldamers with unusual structural architecture from spirobiindan  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN  a2541-25433 a<p>This communication demonstrates the utility of inherently rigid building blocks such as 1,1'-spirobi(indane) for generating conformationally ordered synthetic oligomers with structural architectures distinct from those classically observed.</p>1 aKendhale, Amol, M.1 aGonnade, Rajesh, G.1 aRajamohanan, Pattuparambil, R.1 aHofmann, Hans-Joerg1 aSanjayan, Gangadhar, J.  uhttps://library.ncl.res.in/content/foldamers-unusual-structural-architecture-spirobiindane-building-blocks-001197nas a2200181   4500008004100000022001400041245012800055210006900183260010600252300001400358490000700372520040900379100002300788700002400811700002400835700002800859856012800887       2008                        eng d  a0040-403900aRigid bicyclo[3.3.0]octane (octahydropentalene): a heavily constrained novel aliphatic template for molecular self-assembly0 aRigid bicyclo330octane octahydropentalene a heavily constrained   aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcMAY  a3056-30590 v493 a<p>This Letter reports the utility of a heavily constrained cis-fused bicyclo[3.3.0]octane (octahydropentalene) aliphatic template for effecting molecular self-assembly. An attractive feature of this system is its heavily constrained alicyclic backbone that would allow for the exploration of self-assembling systems with conformationally ordered features. (C) 2008 Elsevier Ltd. All rights reserved.</p>1 aKendhale, Amol, M.1 aGonnade, Rajesh, G.1 aRajamohanan, P., R.1 aSanjayan, Gangadhar, J.  uhttps://library.ncl.res.in/content/rigid-bicyclo330octane-octahydropentalene-heavily-constrained-novel-aliphatic-template-001138nas a2200169   4500008004100000022001400041245015300055210006900208260011000277300001200387490000700399520034400406100002300750700003500773700002800808856013200836       2008                        eng d  a1144-054600aTandem non-polymerizing strategy to higher order acrylamide oligomers; potential intermediates for conformational correlations of poly-N-acrylamides0 aTandem nonpolymerizing strategy to higher order acrylamide oligo  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcFEB  a909-9120 v323 a<p>This letter describes an efficient tandem non-polymerization strategy to deliver higher order N-acrylamide oligomers. These oligomers, accessible in an one-pot procedure, are potential intermediates for the correlation of stereochemistry (tacticity) with conformation and hydrogen bonding propensities in poly (oligo) N-acrylamides.</p>1 aKendhale, Amol, M.1 aRajamohanan, Pattuparampil, R.1 aSanjayan, Gangadhar, J.  uhttps://library.ncl.res.in/content/tandem-non-polymerizing-strategy-higher-order-acrylamide-oligomers-potential-intermediates-001538nas a2200229   4500008004100000022001400041245009900055210006900154260011000223300001200333490000600345520062900351100002500980700001401005700003301019700002301052700002601075700002401101700002601125700002801151856012901179       2011                        eng d  a1477-052000aConformationally rigid aromatic amino acids as potential building blocks for abiotic foldamers0 aConformationally rigid aromatic amino acids as potential buildin  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcNOV  a367-3690 v93 a<p>This communication describes the development of conformationally constrained unnatural aromatic amino acids, constructed on rigid backbone wherein the carboxyl and amino groups project in two dimensions (planes) on the aromatic framework. Such a feature offers the possibility of design and development of conformationally ordered synthetic oligomers with intriguing structural architectures distinct from those classically observed. Furthermore, such amino acids will have the potential to extend the conformational space available for foldamer design with diverse backbone conformation and structural architectures.</p>1 aRamesh, Veera, V. E.1 aRoy, Arup1 aVijayadas, Kuruppanthara, N.1 aKendhale, Amol, M.1 aPrabhakaran, Panchami1 aGonnade, Rajesh, G.1 aPuranik, Vedavati, G.1 aSanjayan, Gangadhar, J.  uhttps://library.ncl.res.in/content/conformationally-rigid-aromatic-amino-acids-potential-building-blocks-abiotic-foldamers-0