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100 _a20190214a2018 k y0engy50 ba
101 0 _aeng
102 _aDE
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aLength Matters: One Additional Methylene Group in a Reactant is Able to Affect the Reactivity Pattern and Significantly Increase the Product Yield
_fE. V. Stepanova [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 12 tit.]
330 _aThe outcome of the nucleophilic opening of 3-O-benzoyl-β-d-arabinofuranose 1,2,5-orthobenzoate with 4-(ω-chloroalkoxy)phenols (SnCl4, CH2Cl2, -25 °C) unusually strongly depends on the length of the methylene chain of the nucleophile. The presence of one extra methylene group in the molecule of 4-(3-chloropropoxy)phenol [as compared to 4-(2-chloroetoxy)phenol] results in four-fold reduction in the reaction time and five-fold increase in the yield of a selectively protected monosaccharide glycoside with a hydroxy group at C-5, which is a valuable building block for the synthesis of oligoarabinofuranosides related to mycobacterial arabinans. Possible reasons and consequences of this finding are discussed.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tSynlett
463 _tVol. 29, iss. 15
_v[P. 2043-2045]
_d2018
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _amycobacterial arabinans
610 1 _aoligosaccharides
610 1 _aglycosylation
610 1 _aorthoesters
610 1 _aphenols
610 1 _areactivity pattern
610 1 _asubstituent effects
610 1 _asolution structure
610 1 _aолигосахариды
610 1 _aгликозилирование
610 1 _aортоэфиры
610 1 _aфенолы
701 1 _aStepanova
_bE. V.
_cchemist
_cengineer of Tomsk Polytechnic University
_f1978-
_gElena Vladimirovna
_2stltpush
_3(RuTPU)RU\TPU\pers\34245
701 1 _aPodvalniy
_bN. M.
701 1 _aAbronina
_bP. I.
_gPolina Igorevna
701 1 _aKononov
_bL. O.
_gLeonid Olegovich
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа химических и биомедицинских технологий (ИШХБМТ)
_c(2017- )
_h8120
_2stltpush
_3(RuTPU)RU\TPU\col\23537
801 2 _aRU
_b63413507
_c20190214
_gRCR
856 4 _uhttps://doi.org/10.1055/s-0037-1610648
942 _cCF