Release 24.6 - February 2025

We are pleased to announce several enhancements and updates in our latest release, aimed at improving user experience and functionality.

To help you explore different analysis types and configuration settings, your account now features Example Analyses. These sample results are shared to your account by the Synthia Team and feature a variety of analysis types including: 

• Automatic Retrosynthesis, using ‘General’ configuration.
• Automatic Retrosynthesis, using ‘Complex Molecules’ configuration.
• Shared Path Library.
• Step-by-Step.
• Diversity Library.

To review results from the Example Analyses, filter by ‘Example’ under Analysis Type on your homepage dashboard.

We have expanded our database of Heterocyclic Chemistry rules. This machine-extracted rules database is now enabled by default in all Saved Configurations. 

658 new expert rules have been added, including rules for:

• Alkylation of alcohols with trialkyloxonium salts
• Alkylation of allyl-bisdioxaborolanes
• Alkylation of carboxylic acids with trialkyloxonium salts
• Alkylation of peracids with trialkyloxonium salts
• Alkylation of sulfonic acids with trialkyloxonium salts
• Catalytic stereoselective synthesis of 1,4-(hetero)-dicarbonyl compounds through alpha-carbonyl umpolung
• Catalytic stereoselective synthesis of 1,4-(hetero)-dicarbonyl compounds through alpha-carbonyl umpolung followed by deprotection
• Catalytic stereoselective synthesis of 1,4-(hetero)-dicarbonyl compounds through alpha-carbonyl umpolung followed by oxidation
• Copper-catalyzed difluoromethylation of alkenyl thianthrenium salts
• Copper-catalyzed perfluoroalkylation of alkenyl thianthrenium salts
• Copper-catalyzed stereoselective 1,4-borylamination reaction
• Copper-catalyzed stereoselective 1,4-borylamination reaction followed by oxidation
• Copper-catalyzed stereoselective 1,4-borylamination reaction followed by oxidation and debenzylation
• Deprotection of amides
• Deprotection of anilines
• Deprotection of carbamates
• Deprotection of imides
• Deprotection of N-heterocycles
• Deprotection of sulfonamides
• Deutero-deamination of primary amines using o-diphenylphosphinylhydroxylamine
• Dirhodium-palladium dual-catalyzed [1+1+3] annulation reaction
• Gold-catalyzed synthesis of substituted phenols via cyclization reaction
• Hydro-deamination of primary amines using o-diphenylphosphinylhydroxylamine
• Iridium-catalyzed stereoselective C-H borylation of masked primary alcohols
• Iridium-catalyzed stereoselective C-H borylation of masked primary alcohols followed by reaction or organolithium compounds and subsequent oxidation
• Iridium-catalyzed stereoselective C-H borylation of masked primary alcohols followed by reaction or organolithium compounds and subsequent oxidation and reduction of carbamates
• Iridium-catalyzed stereoselective C-H borylation of masked primary alcohols followed by reaction with Grignard reagents
• Iridium-catalyzed stereoselective C-H borylation of masked primary alcohols followed by reaction with Grignard reagents and subsequent oxidation of boronates to alcohols
• Iridium-catalyzed stereoselective reductive cycloetherification reaction
• Iron-catalyzed direct oxidative conversion of alkenes to alkenyl nitriles
• Iron-catalyzed synthesis of tetrahydronaphthalenes
• Lewis acid-catalyzed cyclization of polyenes
• Nickel-catalyzed aromatic C-H alkylation with unactivated alkyl halides
• Nickel-catalyzed asymmetric reductive heck reaction of unactivated alkenes
• Nickel-catalyzed carbohydroxylation of alkenes
• Nickel-catalyzed dehydrogenation reaction
• Nickel-catalyzed formation of indenes via carboannulation reaction
• Nickel-catalyzed intramolecular hydroalkenylation of imines
• Nickel-catalyzed reductive cyclization reaction
• Nickel-catalyzed regio- and stereoselective hydroamination
• Nickel-catalyzed regio- and stereoselective hydroamination followed by deprotection
• Nickel-catalyzed stereoselective carbohydroxylation of alkenes
• Nickel-catalyzed stereoselective reductive arylation of alpha-substituted imides
• Nickel-catalyzed stereoselective reductive coupling of aldehydes with protected amino-pentadienoates
• Nickel-catalyzed stereoselective reductive coupling of aldehydes with protected amino-pentadienoates followed by deprotection
• Nickel-catalyzed synthesis of trans-cinnamonitrile
• Organocatalytic asymmetric cycloaddition of olefins with in situ generated N-Boc-formaldimine
• Organocatalytic asymmetric cycloaddition of olefins with in situ generated N-Boc-formaldimine followed by hydrolysis
• (Z)-selective synthesis of alpha,beta-unsaturated nitriles
• [3+2]-annulation of aromatic aldimines with alkenes via C-H activation
• [4+2]-cycloaddition of o-quinodimethanes with dienophiles
• Palladium-catalyzed migratory 1,1-cycloannulation reaction of alkenes
• Palladium-catalyzed ring formation reaction via carbene insertion
• Palladium-catalyzed stereoselective 1,5-hydroximation of unsaturated esters
• Palladium-catalyzed stereoselective 1,5-hydroximation of unsaturated esters followed by hydrolysis
• Palladium-catalyzed stereoselective 1,5-hydroximation of unsaturated esters followed by reduction
• Photocatalytic alkene carboxy-alkylation reaction via formate-derived carbon dioxide radical anion
• Photocatalytic alpha-olefination of nitriles with primary alcohols
• Photocatalytic four-component coupling
• Photocatalytic synthesis of beta-amino phosphonium ylides
• Photocatalytic synthesis of beta-amino phosphonium ylides followed by photocatalytic (hetero)arylation
• Photocatalytic synthesis of beta-amino phosphonium ylides followed by photocatalytic alkylation
• Photocatalytic synthesis of beta-amino phosphonium ylides followed by reduction
• Photocatalytic synthesis of beta-amino phosphonium ylides followed by Wittig olefination
• Photocatalytic three-component coupling
• Photochemical deracemization of lactams enabled by dual hydrogen atom transfer
• Photochemical deracemization of lactams enabled by dual hydrogen atom transfer followed by amide deprotection
• Regioselective synthesis of alpha-vinyl boronates via palladium-catalyzed Mizoroki-Heck reaction
• Rhodium-catalyzed stereoselective conjugate addition of boronic acids
• Rhodium-catalyzed stereoselective reductive hydroformylation of alpha-substituted enamides
• Rhodium-catalyzed stereoselective reductive hydroformylation of alpha-substituted enamides followed by amine deprotection
• Rhodium-catalyzed [2+2+2] cycloaddition reaction
• Stereoselective intramolecular cyclization of unactivated alkenes
• Stereoselective propargylic C-H acyloxylation enabled by photoexcited copper catalysis
• Stereoselective propargylic C-H acyloxylation enabled by photoexcited copper catalysis followed by deprotection of benzoates
• Stereoselective synthesis of 1,2-oxaborinan-3-enes
• Stereoselective tandem [2+2]-pericyclic ring opening followed by intramolecular n-tethered [4+2]-cycloaddition reaction
• Stereoselective tandem [2+2]-pericyclic ring opening followed by intramolecular n-tethered [4+2]-cycloaddition reaction followed by detosylation
• Stereospecific deoxygenation of cyanoepoxides to alkenyl nitriles
• Syntheses of 1,2-oxaborinan-3-enes
• Synthesis of 3-aminoimidazo[1,2-a]pyrazines
• Synthesis of 3-aminoimidazo[1,2-a]pyridines and 3-aminoimidazo[1,2-a]pyrazines
• Synthesis of 3-aminoimidazo[1,2-a]pyrimidines
• Synthesis of allyl-bisdioxaborolanes
• Synthesis of bromo-diborylmethane
• Synthesis of carbocycles via copper-catalyzed cascade reaction
• Synthesis of chloro-diborylmethane
• Synthesis of dehydroprolines by photoredox cloke-wilson rearrangement
• Synthesis of fluoro-diborylmethane
• Synthesis of imidazolo[1,2-a]imidazoles
• Synthesis of imidazolo[1,2-b]-1,2,4-triazoles
• Synthesis of imidazolo[2,1-b]oxazoles and imidazo[2,1-b]thiazoles
• Synthesis of iodo-diborylmethane
• Synthesis of N-carboxy-alpha-aminoacid anhydrides
• Synthesis of nitriles from aldehydes and methyl cyanoacetate
• Synthesis of sulfonyl azides
• Synthesis of tetralines via stereoselective [5+1] annulation reaction
• Synthesis of vinyl sulfonates via vinylogous substitution of (E)-1,2-bis(phenylsulfonyl)ethylene
• Transition-metal-free stereoretentive decarboxylative amidation of carboxylic acids with dioxazolones
• Transition metal-catalyzed aromatic C-H alkylations with unactivated alkyl halides

Version 24.6 of SYNTHIA™ has been tested with Chrome versions 131.0.6778.265 and 132.0.6834.160 on Windows 10 Enterprise, Windows 11 Enterprise, and Mac OS Sequoia 15.2.