From the NYT article, it looks like there was a more recent wave of Syrian Jewish newcomers to the U.S.:
In the early 1990s, President Hafez Assad of Syria allowed his country’s remaining Jews, numbering 6,000 or so, to emigrate on condition that they didn’t go to Israel. Naturally, they went to Brooklyn instead. The new SY’s, as they are called, provided the enclave with fresh faces and some old-country authenticity. In return they were given housing, free schooling and whatever assistance they needed to establish themselves. “They even got us lawyers to take care of the citizenship process,” a recent immigrant told me. “It’s not just the money. We came to the U.S. with some money. It was the way they took care of us as brothers.”
Another older NYT article on Brooklyn's SY community, this time focusing more on real estate:
https://www.nytimes.com/2006/06/25/r...ate/25cov.html