Bring a reaction you cannot follow, a stereochemistry question that keeps flipping, or a spectroscopy problem with too many clues. Astra slows the mechanism down, asks what you would do next and stays with you until the pattern makes sense.
One subscription turns your own material into the lessons, practice and mock exams this page describes.
Identify the nucleophile and electrophile, follow the electron pair, name the intermediate and explain why the next step happens. Ask Astra to stop before the product and let you predict it.
Build a map from functional group to reaction class instead of memorising a list. See what changes, what stays the same and which conditions select one pathway over another.
Work through chirality, optical activity, SN1 and SN2 stereochemistry, E2 elimination and face-selective attack with clear language and step-by-step reasoning.
Combine IR, UV-Vis, mass spectrometry and NMR clues into a structure. Astra helps you rank the evidence, test a proposed structure and explain why an alternative fails.
Photograph a printed or handwritten reaction scheme. Check that charges, bonds and stereochemistry were read correctly, then ask for a walkthrough rather than a bare answer.
Use your own notes and past papers for A-level, IB, AP or university organic chemistry. Generate questions by topic, mark your attempts and revisit the mechanism that keeps slipping.
Type the scheme, describe it or scan the question. Say where you got stuck: choosing the nucleophile, drawing the arrow or predicting the stereochemistry.
Astra breaks the reaction into checkpoints. You predict each step before seeing it, then compare your reasoning with a clear explanation.
Finish with a related substrate or a new conditions question. If you can solve that one without help, the mechanism is yours.
Yes. Astra can identify the nucleophile and electrophile, describe electron movement, name intermediates, discuss stability and connect conditions to the expected pathway. You should still check the explanation against your textbook and the notation your exam board uses.
Yes. Photograph the scheme and check that Astra has read every charge, bond and stereochemical mark correctly before accepting the explanation. Handwriting and crowded diagrams can be misread, so correct the transcription first.
It covers chirality, optical activity, SN1 and SN2 stereochemistry, E2 elimination, racemic mixtures and face selectivity. Ask it to state the expected stereoisomer explicitly and explain why the other outcome is less likely.
Yes. Bring the spectrum or a description of the peaks and ask Astra to rank the evidence, propose structures and reject alternatives step by step. Verify chemical shifts and integration against your data sheet.
Astra can work across school, A-level, IB, AP and introductory university organic chemistry. For advanced named reactions or research-level cases, check the mechanism against a specialist source.
Astra plans start at $9.99 per month, with annual billing available. One subscription covers chemistry, the other subjects and the study tools described on this page.
The broader chemistry tutor: equations, calculations, physical chemistry and lab work.
Learn moreSee how topics, practice, flashcards and mock exams fit together.
Learn moreA task-by-task comparison of the major chemistry tools and how to verify their answers.
Learn moreStart with the reaction that keeps going wrong. Astra will break it into steps and make you do the next one yourself.
