The original editions (Editura Tehnică, Editura Didactică și Pedagogică) have been out of print for decades. While Editura Tehnică released a massive, two-volume edition as late as 1996, these physical copies are rare, expensive (often costing $150-$300 on second-hand markets like Okazii.ro or Libris), and heavy.
In 2022-2023, the Romanian Ministry of Education discussed digitizing classic Romanian textbooks for internal educational use. Check the or your university’s internal Moodle/Blackboard system. Some professors upload scanned chapters (legally, under educational exceptions) for specific courses. Chimie Organica Nenitescu.pdf
– use it for mechanisms, historical reaction discoveries, and hard problems, but always verify suspicious claims with a modern source. The original editions (Editura Tehnică