> top > docs > PubMed:3127051 > annotations

PubMed:3127051 JSONTXT

Annnotations TAB JSON ListView MergeView

sentences

Id Subject Object Predicate Lexical cue
TextSentencer_T1 0-61 Sentence denotes Selective mono-Claisen rearrangement of carbohydrate glycals.
TextSentencer_T2 62-119 Sentence denotes A chemical consequence of the vinylogous anomeric effect.
TextSentencer_T3 120-261 Sentence denotes The mono-Claisen rearrangement of carbohydrate glycals is demonstrated to be a synthetically useful and mechanistically significant reaction.
TextSentencer_T4 262-520 Sentence denotes Addition of per-O-acetyl glycal-tert-butyldimethylchlorosilane mixture to lithium diisopropylamide generated a bis (or tris)ketenesilylacetal which, upon heating, underwent smooth mono-Claisen rearrangement to provide a C-glycosyl compound after methylation.
TextSentencer_T5 521-627 Sentence denotes A second apparently similar Claisen rearrangement required significantly higher temperatures in all cases.
TextSentencer_T6 628-716 Sentence denotes Thus, similar hydroxy groups were differentiated without resort to selective protection.
TextSentencer_T7 717-889 Sentence denotes A stereoelectronic rationale based on the newly-introduced vinylogous anomeric effect (VAE) is put forth to explain the accelerated Claisen rearrangements of these glycals.
TextSentencer_T8 890-1064 Sentence denotes Molecular orbital and resonance descriptions of the VAE are included, and the VAE is also used to rationalize ground-state conformational preferences of carbohydrate glycals.
TextSentencer_T9 1065-1259 Sentence denotes The C-glycosyl compounds produced by mono-Claisen rearrangement were suitable for Pd(0)-catalyzed allylic alkylations, providing an unusually facile entry into the pseudomonic acid-ring systems.
TextSentencer_T10 1260-1337 Sentence denotes A nine-step synthesis of a known precursor of pseudomonic acid C is reported.
T1 0-61 Sentence denotes Selective mono-Claisen rearrangement of carbohydrate glycals.
T2 62-119 Sentence denotes A chemical consequence of the vinylogous anomeric effect.
T3 120-261 Sentence denotes The mono-Claisen rearrangement of carbohydrate glycals is demonstrated to be a synthetically useful and mechanistically significant reaction.
T4 262-520 Sentence denotes Addition of per-O-acetyl glycal-tert-butyldimethylchlorosilane mixture to lithium diisopropylamide generated a bis (or tris)ketenesilylacetal which, upon heating, underwent smooth mono-Claisen rearrangement to provide a C-glycosyl compound after methylation.
T5 521-627 Sentence denotes A second apparently similar Claisen rearrangement required significantly higher temperatures in all cases.
T6 628-716 Sentence denotes Thus, similar hydroxy groups were differentiated without resort to selective protection.
T7 717-889 Sentence denotes A stereoelectronic rationale based on the newly-introduced vinylogous anomeric effect (VAE) is put forth to explain the accelerated Claisen rearrangements of these glycals.
T8 890-1064 Sentence denotes Molecular orbital and resonance descriptions of the VAE are included, and the VAE is also used to rationalize ground-state conformational preferences of carbohydrate glycals.
T9 1065-1259 Sentence denotes The C-glycosyl compounds produced by mono-Claisen rearrangement were suitable for Pd(0)-catalyzed allylic alkylations, providing an unusually facile entry into the pseudomonic acid-ring systems.
T10 1260-1337 Sentence denotes A nine-step synthesis of a known precursor of pseudomonic acid C is reported.